Answer:
Choice C
Step-by-step explanation:
Since every group has 111 people, and choice a and b talk about different group sizes, a and b are wrong.
Hopefully this helps.
Answer:
95% of women have pregnancies length between 236 and 300 days.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 268
Standard Deviation, σ = 16
We are given that the distribution of length of a human pregnancy is a bell shaped distribution that is a normal distribution.
Empirical Rule:
- It states that for a normal distribution all the data lies within three standard deviation of mean.
- About 68% of data lies within one standard deviation of mean.
- About 95% of data lies within two standard deviations of mean,
- About 99.7% of data lies within three standard deviation from mean.
P(pregnancies are between 236 and 300 days)
By empirical rule, 95% of data lies within two standard deviations of mean, thus, 95% of women have pregnancies length between 236 and 300 days.
Answer:
$53.3
Step-by-step explanation:
40 + 10.5 + (7% of 40)
50.5 + (7/100 × 40)
50.5 + 2.8
53.3
The probability in all given conditions is 1/4.
According to the statement
Number of coin tossed = 3
Total outcomes = 8
Now, we have to find the probabilities on different conditions.
- Probability of a head on each of the last two tosses
Probability = A head on each of the last two tosses/ total outcomes
Probability = 2/8
Probability = 1/4.
- Probability of alternating tale and head
Probability = alternating tale and head / total outcomes
Probability = 2/8
Probability = 1/4.
- Probability of a no tails on each of the last two tosses
Probability = A No tails on each of the last two tosses/ total outcomes
Probability = 2/8
Probability = 1/4.
So, The probability in all given conditions is 1/4.
Learn more about PROBABILITY here brainly.com/question/25870256
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V=(4/3)pir^3
SA=4pir^2
so
V=288=(4/3)pir^3
times both sides by 3/4
216=pir^3
divide both sides by pi
216/pi=r^3
cube root both sides
6/(∛pi)=r
sub into other
sa=4pir^2
sa=4pi(6/(∛pi))^2
SA=4pi(36/(∛(pi²)))
SA=144pi/(∛(pi²))
SA=144pi∛pi/pi
SA=144∛pi
SA≈210.901 in²
not sure what option that's supposed to be