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jarptica [38.1K]
2 years ago
9

The Chapin Social Insight Test evaluates how accurately the subject appraises other people socially. In the reference population

used to develop the test, scores are approximately normally distributed with mean 25 and standard deviation 5. The range of possible scores is 0 to 41. a) What proportion of subjects in the population will have scores above 31
Mathematics
1 answer:
Vesna [10]2 years ago
4 0

Answer:

0.11507

Step-by-step explanation:

Given that:

Mean (m) = 25

Standard deviation = 5

Proportion of subject in the population with score above 31

P(x > 31)

Obtain the standardized score of x = 31

Zscore = (x - m) / s

Zscore = (31 - 25) / 5

Zscore = 6 / 5

Zscore = 1.2

Hence, p(Z > 1.2)

Using the Z probability calculator :

p(Z > 1.2) = 0.11507

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Answer:

(2×3)¹

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Step-by-step explanation:

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11×1=11 so 11 to the power 1 is 11 and 1 to the power 1 is 1 so 11×1 =11

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Answer:

π (Pi) is a famous irrational number.

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2 years ago
Suppose the wholesale price of a certain brand of medium-sized eggs p (in dollars/carton) is related to the weekly supply x (in
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Answer:

1300

Step-by-step explanation:

We are given

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We want to find \frac{dx}{dt}, which is the rate at which supply is changing.

First, we need to implicitly differentiate the equation given:

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Now, find dx/dt:

1250(1.46)(-0.05)-2(35)\frac{dx}{dt}=0\\-91.25-70\frac{dx}{dt}=0\\\frac{dx}{dt}=-1.30

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