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Marat540 [252]
3 years ago
8

Let X subscript 1 comma... comma X subscript 9 denote the Intelligence Quotient IQ) of a randomly selected individuals. Assume t

hat IQs are normally distributed with mean 100 and variance 162. Let S squared be the sample variance. Then, c S squared tilde chi squared (d f ). Find the constant "c" and degrees of freedom "df" of the chi-squared distribution.

Mathematics
1 answer:
asambeis [7]3 years ago
4 0

Answer:

Step-by-step explanation:

Find attached the solution

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A farm raises a total of 220 chickens and pigs. The number of legs of the stock in the farm totals 520. How many chickens and pi
ozzi
There are 220 chickens and pigs on the farm.
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3 years ago
Sunscreen should be applied every 2 hours. Over the summer, Cece spends at least 84 hours outside.
maria [59]

Answer:

42

Step-by-step explanation:

84 divide 2

answer 42

answer =42

4 0
3 years ago
The sum of three consecutive even integers is 144.
WARRIOR [948]
If you divide 144 by three you get 48. Then when you subtract one from 48 you get 47. When you add one to 48 you get 49. So the three consecutive numbers are 47, 48, 49
8 0
3 years ago
Read 2 more answers
Which do you think is greater, 4x3 2/5 or 3x4 2/5? How can you tell without multiplying? Explain
OLga [1]

Answer:

They are the same.

Step-by-step explanation:

According to the commutative property, switching the order of this will not change the outcome.

4 0
2 years ago
Which is the best approximation for the measure of angle ABC?
ankoles [38]
We can find the approximate measurement of angle ABC  and it is equal to 180°. The summation of all angles in a triangle is 180°.
Solving for x or angle B, we need to used Pythagorean theorem and SOH CAH TOA.
Solving for angle A:
sinA = 10.5/20
A = 31.67°

Solving for angle B:
180° = ∠C + ∠B + ∠A
180° = 90° + ∠B + 31.67
∠B = 58.33°

The x value is 58.33°.
3 0
3 years ago
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