Complete Question:
a) Is it plausible that X is normally distributed?
b) For a random sample of 50 such pairs, what is the (approximate) probability that the sample mean courtship time is between 100 min and 125 min?
Answer:
a) It is plausible that X is normally distributed
b) probability that the sample mean courtship time is between 100 min and 125 min is 0.5269
Step-by-step explanation:
a)X denotes the courtship time for the scorpion flies which indicates that is a real - valued random variable, and since normal distribution is a continuous probability distribution for a real valued random variable, it is plausible that X is normally distributed.
b) Probability that the sample mean courtship time is between 100 min and 125 min
From the probability distribution table:
It is equal to 0.8 five star please?
111.1 is the answer to the question
Answer:
approximately 10
Step-by-step explanation:
Volume = 1/3h times times radius square
1570 = 1/3 x 15 x 22/7 x
1570 = 5 times times
1570 = 15.71
=
99.9 = r^2
= r
≅10