We have events:
- a <span>student stays in the school's dormitory
- </span>a <span>student stays with family
- </span><span>a student receives As
and </span> probabilities:
We want to calculate the probability <span>that the student lives in the school dormitory given he </span><span>receives As so it will be </span>
. From the <span>Bayes' theorem we know that:
The only thing we don't know is
, but we can calculate it using the l</span><span>aw of total probability. There will be:
So our probability:
Answer D.
</span>
27 1/2
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Answer:
= −0.26
= 0.4219
Step-by-step explanation:
Given:
Sample1: 98.1 98.8 97.3 97.5 97.9
Sample2: 98.7 99.4 97.7 97.1 98.0
Sample 1 Sample 2 Difference d
98.1 98.7 -0.6
98.8 99.4 -0.6
97.3 97.7 -0.4
97.5 97.1 0.4
97.9 98.0 -0.1
To find:
Find the values of and
d overbar ( ) is the sample mean of the differences which is calculated by dividing the sum of all the values of difference d with the number of values i.e. n = 5
= ∑d/n
= (−0.6 −0.6 −0.4 +0.4 −0.1) / 5
= −1.3 / 5
= −0.26
s Subscript d is the sample standard deviation of the difference which is calculated as following:
= √∑( - )²/ n-1
=
√
= √ (−0.6 − (−0.26 ))² + (−0.6 − (−0.26))² + (−0.4 − (−0.26))² + (0.4 −
(−0.26))² + (−0.1 − (−0.26))² / 5−1
=
=
=
= 0.4219
= 0.4219
Subscript d represent
μ represents the mean of differences in body temperatures measured at 8 AM and at 12 AM of population.
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Hope this helps
The answer is a. 40 square centimeters, because the area of a triangle is A=(1/2)Bh, or half of Base multiplied by half of Height.
