A study involves a population of 400 tall women. This population has a mean height of 179.832 cm and a standard deviation of 12.
1 answer:
Answer: 0.0386
Step-by-step explanation:
Given: The population of 400 tall women has a mean height of 179.832 cm and a standard deviation
of 12.192 cm.
Let X be a random variable that represents the height of woman.
Sample size : n= 50
The probability that the mean for this sample group is above 182.88 will be :
Hence, Required probability = 0.0386
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Answer:
Explained below.
Step-by-step explanation:
Denote the variable as follows:
M = male student
F = female student
Y = ate breakfast
N = did not ate breakfast
(a)
Compute the probability that a randomly selected student ate breakfast as follows:
(b)
Compute the probability that a randomly selected student is female and ate breakfast as follows:
(c)
Compute the probability a randomly selected student is male, given that the student ate breakfast as follows:
(d)
Compute the probability that a randomly selected student ate breakfast, given that the student is male as follows:
(e)
Compute probability of the student selected "is male" or "did not eat breakfast" as follows:
(f)
Compute the probability of "is male and did not eat breakfast as follows: