Answer:
150 leaves
Step-by-step explanation:
50% is helf of the whole, so you just want to divide 300 by 2, and you get 150. I hope this helps :)
Function intercepts the x-axis where y=0
We can now calculate the discriminant and find the roots.
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:
6n
n = 7
6x7 = 42
So the value is 42.