what is the z-score of 15?
Answers
Percentile 15
z-Score -1.036
Related Questions
Please help me!! The question is in the attachment!!
Answers
Using it's concept, the probabilities are given as follows:
b) P(B|C) = 0.1429.
c) P(not A|B) = 0.8.
What is a probability?The probability of an event in an experiment is calculated as the number of desired outcomes of the experiment divided by the number of total outcomes of the experiment.
For item b, the conditional probability can be written as follows:
P(B|C) = P(B and C)/P(C).
From the diagram, we have that:
P(B and C) = P(5) = 0.05.P(C) = P(5) + P(6) = 0.05 + 0.3 = 0.35.Hence:
P(B|C) = 0.05/0.35 = 0.1429.
For item c, the conditional probability is:
P(not A|B) = P(not A and B)/P(B).
From the diagram, these probabilities are:
P(not A and B) = P(4) + P(5) = 0.15 + 0.05 = 0.20.P(B) = P(3) + P(4) + P(5) = 0.05 + 0.15 + 0.05 = 0.25.Hence:
P(not A|B) = 0.20/0.25 = 0.8.
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Natalie wants to know how much money her computer costs each day if she never turns it off. She uses a meter to record the amount of energy her computer uses each day for 30 days. After recording the cost for 30 days, she determined the cost to run her computer is equal to the function /(d), where f(d) = 0.40d, where d is the number of days What is the value of '(d) at f(30)? dollars 4. What is the value of f(30) in context? I Running a computer for 30 days will cost her $ in electricity.
Answers
Answer:
Step-by-step explanation:
f(30) = 0.40×30 = $12
Running the computer for 30 days will cost $12 in electricity.
Part 1 of 2
Evaluate the function f(x)=x-7 at the given value of the variable.
a. f(13)
b. f(3)
Answers
Answer:
a)
b)-4
Step-by-step explanation:
a) f(13) = 13-7=
b) f(3)= 3-7= -4
Which angle corresponds to <8?
Answers
Answer:
>4
Step-by-step explanation:
the answer of the question is >4
Which of the following speeds will produce lowest miles per gallon?
A. 35 mph
B. 105 mph
c. 45 mph
D. 55 mph
SUBMIT
Answers
Answer: B. 105 mph
Step-by-step explanation:
Answer:
trust me (D) is the correct answer can you mark b please thank you
Step-by-step explanation:
I hope it help you lot see you around
I need help with 2,4 and 6 I attached a image below
Answers
Answer:
Step-by-step explanation:
2. 8n= -2
n= -1/4
4. -8s= 32
s= -4
6. 1/7b= -7
b= -49
52080 divided 15
52,080÷15
Answers
Answer:
3472
Step-by-step explanation:
please help will do brainliest please. :(
Answers
Answer:
there is no question to answer lol
A solution to an equation is a value that, when substituted for the variable, makes the equation true.x+2=75+2=77=7✓Since 5+2=7 is a true statement, we know that 5is indeed a solution to the equation.
Answers
A solution to an equation is a value that, when substituted for the variable, makes the equation true. In the equation x+2=7, the solution is x=5.
This is because if we substitute 5 for x, the equation becomes 5+2=7, which is a true statement. To find this solution, we need to solve the equation by subtracting 2 from both sides, leaving us with x=5. This solution works because it satisfies the equation; when we substitute 5 for x, the equation is true.
In equations, solutions are important because they are the values that make the equation true. Without solutions, equations would remain unsolved and incomplete, which is why it is important to find the solution to an equation.
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One month Sam rented 3 movies and 5 video games for a total of $32. The next month, he rented 12 movies and 2 video games for a total of $29. Find the rental cost for a movie and a video game.
Answers
Using a system of equations, the rental cost for a movie and a video game is as follows:
Movie = $1.50Video game = $5.50.What is a system of equations?A system of equations is two or more equations solved concurrently or at the same time.
A system of equations is also described as simultaneous equations.
Movies Video Total
Games Cost
First month rental 3 5 $32
Second month rental 12 2 $29
Let the rental cost per movie = x
Let the rental cost per video game = y
Equations:
3x + 5y = 32 ... Equation 1
12x + 2y = 29 ... Equation 2
Multiply Equation 1 by 4:
12x + 20y = 128 ... Equation 3
Subtract Equation 2 from Equation 3:
12x + 20y = 128
-
12x + 2y = 29
18y = 99
y = 5.5
Substitute y = 5.5 in Equation 1 or 2:
12x + 2y = 29
12x + 2(5.5) = 29
12x + 11 = 29
12x = 18
x = 1.5
Thus, based on simultaneous equations, the rental cost for a movie is $1.50 while a video game's is $5.50.
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On January 22 in 1943, the town of Spearfish, South Dakota, set the record for the world’s fastest temperature change.
At 7:30 a.m., the temperature was `-4`°F.
By 7:32 a.m., the temperature was `45`°F.
By 9:00 a.m. the same day, the temperature was `54`°F.
By 9:27 a.m., the temperature was `-4`°F.
How many degrees did the temperature change each minute from 7:30 to 7:32?
Answers
Answer:6 degrees
Step-by-step explanation:
Nike conducted a market research to study if there is any difference in satisfaction, between men and women, after 1 year ownership of Nike products. To test that their research team came up with the following hypothesis:
- Null: There is no difference in satisfaction between men and women.
- Alternative: Men and women differ in their satisfaction of Nike products.
The t-value for this alternative hypothesis is 2.52, and the degrees of freedom (df) = 117.
what is the p-value for this alternative hypothesis?
a.) 0.0065
b.) 0.0131
c.) 0.9869
d.) 0.9935
Answers
The p-value for this alternative hypothesis is approximately 0.0131.
Option b.) 0.0131 is correct.
To find the p-value for the alternative hypothesis, follow these steps:
1. Identify the t-value and degrees of freedom: t-value = 2.52,
df = 117.
2. Since this is a two-tailed test (we're testing for a difference in satisfaction between men and women, not just whether one group is more satisfied),
we need to find the p-value in the t-distribution table or use a t-distribution calculator.
Using a t-distribution calculator, we input the t-value (2.52) and degrees of freedom (117), and select a two-tailed test.
The calculator will give us the p-value.
Option b.) 0.0131 is correct.
For similar question on hypothesis.
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What is the five-number summary for the data set?
Answers
Answer:B
Step-by-step explanation:A summary consists of five values: the most extreme values in the data set (the maximum and minimum values), the lower and upper quartiles, and the median.
The slope intercept form of a linear equation is given by AX true or false
Answers
125 is what percent of 200?
Answers
Answer:
125 is 62.5% of 200, hope this helps :)
What percent of 50 is 44
Answers
Answer:
here u go
Step-by-step explanation:
88%
Answer:
88% of 50 is 44
Step-by-step explanation:
50x=44
x=44/50
x=0.88
Therefore, 88% of 50 is 44
Which of the h values are solutions to the following equation?
h^2=0.36
Choose all answers that apply:
A: h= square root of 0.6
B: h = square root of -0.6
C: h = 0.18
D:h = -0.18
E: None of the above
Answers
Answer:
a:h=square root of 0.6
Step-by-step explanation:
thank you for your time today
Answer:
none of the above
Step-by-step explanation:
KHAN
Set up an equation for x and solve to the nearest degree
Answers
Answer:
Almost equals 28°
Step-by-step explanation:
cos(x)= 12/18
x= cos^-1 (12/18)
So it equals 48.1896°
Pamela is 14 years younger than Jiri. The sum of their age is 70. What is Jiri’s age?
Answers
Answer:
56 ...
Step-by-step explanation:
70-14 = 56
Since it’s the sum of their age it’s just jiri’s age plus Pamela’s so you just subtract Pamela’s age from the total sum. And that would make jiri 56. (Sum means the total from adding) So if you do the problem over again. “The sum of 56 and 14” it would take you back to the question you have now. This is inverse addition.
Answer:42
Step-by-step explanation: you split 70 in half, 35 and 35. Then you add 7 to one (Jiri) and subtract 7 from one(Pamela). You get 42 and 28. To check you do 42-28=14 and 42+28=70.
Nicole bought
6
CDs that were each the same price. Including sales tax, she paid a total of
$
69.60
. Of that total,
$
4.20
was tax. What was the price of each CD before tax?
Answers
Answer: $11.60
Step-by-step explanation: Since ur finding the cost of one cd and she bought 6 and since is before tax you do 36.90/(divided by) 6 and boom #!
whats 10 x 34? please tell me
Answers
Answer:
340=10*340 calculated
Answer:
340
Step-by-step explanation:
i know math alot
work out the length of the container. Giver your answer to the nearest whole centimetre.
Dennis is making a container for tomato plant. The container will be in the shape of a cuboid.
missing length ? 40cm by 55cm.
The capacity of the container will be 180 litres.
1 Litre =1000cm cuboid.
Answers
Answer:
Length of the container = 82 cm
Step-by-step explanation:
Given:
Breadth of the container is 40 cm and height of the container is 55 cm
Volume of the container is 180 litres
To find: length of the container
Solution:
A container is in the shape of the cuboid.
Volume of cuboid = length × breadth × height
Put breadth = 40 cm , height = 55 cm and volume = 180 litres = 180000 \(cm^3\)
(as 1 litre = 1000 \(cm^3\) )
Therefore,
\(180000=length\,\times \,40\times 55\\length = \frac{180000}{40\times 55}=81.82\approx 82\,\,cm\)
• 10%
5) An experiment consists of spinning the spinner shown below 200 times and recording the
results in a frequency table. Based on theoretical probability, how many times would you
expect the color blue or green to be spun?
BLUE
GREEN
YELLOW
REd
Answers
Based on their given probabilities, e would expect the color blue or green to be spun approximately 75 times in this experiment.
How many times can the blue or green color be obtained?To find the expected number of times the color blue or green will be spun, we first need to add their probabilities:
0.25 + 0.125 = 0.375
This means that, on average, we would expect to see blue or green spun 0.375 times for every spin. To find the expected number of times this will happen over 200 spins, we can multiply the probability by the number of spins:
0.375 x 200 = 75
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Find the distance between the two points in simplest radical form.
(-8,3) and (-2,5)
Answers
Here we would be using distance formula to calculate the distance between those two points.
Points are,
(-8,3) (-2,5)★ Distance Formula :
\(\huge \large \boxed{\sf{{d \: = \: \sqrt{(x _{2} - x _{1}) {}^{2} \: + \: (y _{2} - y _{1}) {}^{2} }}}} \: \red\bigstar\)We have :
x1 = -8 x2 = -2 y1 = 3 y2 = -5Substituting the values :
Refer the attachment.Additional Information :Centroid of a triangle :-
\(\boxed{ \sf{Centroid \: = \: \dfrac{x_1 \: + \: x_2 \: + \: x_3}{3} }} \: \pink\bigstar\)Midpoint of two points:-
\(\boxed{ \sf{M \: = \: \dfrac{x_1 \: + \: x_2 }{2} \: , \: \dfrac{y_1 \: + \: y_2 }{2}}} \: \pink\bigstar\)
i need help with 7th grade math please need help ASAP + brainleist
Answers
Rectangle
A = b x h
=100 x 62
= 6200m^2
2 semi-circles make one full circle
Diameter is 62
Raduis is 31
A = 3.14 x 31 x 31
= 3017.54m^2
Total area:
6200m^2 + 3017.54m^2 = 9217.54
Ans: 9217.54m^2
Hope this helps!
a bike cost 129.90 what is your total with a tax of 5%
Answers
Answer:
so you just use the equation to get the formula and extract the common denominator
Step-by-step explanation:
because i said so
Two men shared the cost of
business in the ratio 3 : 5. If the
smaller share is N450.00, find the
total cost of the business.
Answers
Answer:
if 3 is smallest and it ratio is 450 that means 450/3=150
5*50=750
3:5
450+750=1200
43 is 31% ofwhat number
Answers
Answer:
13.33.
Step-by-step explanation:
usjageiudhwkaloahdveb
A lawn specialist measured the average temperature during different growing periods and the amount that thegrass grew during each period. The scatter plot shows the results of his study. Based on this plot, which is thebest prediction for the growth that would occur if the temperature were 55° F?
Answers
Looking at the graph we can see that when the average temperature is 50º F, the grass growth is around 15 cm, when the temperature is 60º F it's 13 cm.
The best prediction for 55º F will be the point between 50º F and 60º F, as we can see, 55º F is the middle point between 50 and 60ºF.
Using that logic, we can say that the grass growth will be the middle point between 15 cm and 13 cm, which lead us to the answer: 14 centimeters.
We can also see it graphically
The table shows the unit prices for items Darryl
purchased to improve Downtown Deli.
Darryl places an order for 128 ounces of pickles, 24
loaves of bread, and 25 pounds of coffee. What is the
total cost of the order?
$
Answers
Answer:
94.85
Step-by-step explanation:
0.20x128=25.60
0.75x24=18.00
2.05x25=51.25
25.60+18.00+51.25= 94.85
Answer:
it is 94.85
explanation:
i took this applications of unit rate test trust me. :D