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:


2/9 is the answer hope it will help
About
2884 people practice a sport/club
1133 people nap
618 people work
1751 people do homework
1442 people play games
1339 people eat a snack
1133 people are on social media
...after school
Answer:
120
Step-by-step explanation:
180-50-70=60
180-60=120
Answer:
The Answer is D
Step-by-step explanation: