The cutoff for a failing score is 51 and about 2.28% of the students failed the psychology exams.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Z score is given by the equation:
z = (raw score - mean) / standard deviation
Given mean of 61 and a standard deviation of 5.
The z score that corresponds to 2 or more standard deviations below the mean is -2. Hence:
-2 = (x - 61) / 5
x = 51
P(z < -2) = 0.0228
The cutoff for a failing score is 51 and about 2.28% of the students failed the psychology exams.
Find out more on equation at: brainly.com/question/2972832
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Answer A
6-4=2, 2^2=4
So 7-3=4, 4^2=16
1) B
2) B
explanation — for #1, i think of each jar is 7/4, and each pizza is 1/4. so, you would be dividing 7/4 equally amongst 1/4s (each mini pizza.). and for #2, 2 cups as a compatible fraction would be 6/3. 6/3 divided among 1/3 cups ( 1/3 for each pizza) you would get 6.
Answer: the sum of twelve and a number is not greater than the sum of twice the number and -8 ------------------- Let the number be "x": x + 12 <= 2x -8 x>= 20 -------------
Step-by-step explanation: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39.
Answer:
Apply BODMAS
Step-by-step explanation:
PLEASE FIND THE PICTURE BELLOW
SOLUTION STEPS
(4⋅2−10x−24)(2x+3)
Multiply 4 and 2 to get 8.
(8−10x−24)(2x+3)
Subtract 24 from 8 to get −16.
(−16−10x)(2x+3)
Apply the distributive property by multiplying each term of −16−10x by each term of 2x+3.
−32x−48−20x
2
−30x
Combine −32x and −30x to get −62x.
−62x−48−20x
2