Answer: It's the top left because the line passes through 10 on the y axis.
Answer:
(25*9)/52
Step-by-step explanation:
Answer:
Answered and explained below
Step-by-step explanation:
A) We are told that frequency of the trait is still 1 in 8. Thus, population proportion; p = 1/8 = 0.125
Sample size; n = 150
Formula for mean is;
μ = np
μ = 150 × 0.125
μ = 18.75
Formula for standard deviation is;
σ = √(np(1 - p))
σ = √(150 × 0.125(1 - 0.125))
σ = √16.40625
σ = 4.05
B) usually, when np ≥ 10 , we make use of normal distribution.
I'm this case, it is 18.75 which is greater than 10.
Thus,we can use a normal model to approximate the distribution.
C) we are told that he found the trait in 22 of the frogs.
Thus;
Proportion is now; 22/150 = 0.1467
This is a higher probability that the initial one of 0.125 and we can say that the trait has become more common.
2 weeks = 14 days
10 / 14 = 0.71428571428
0.71428571428 * 31 = 22.1428571429
The town received about 22 inches of rain.
If you include the 2 weeks, then it would be 32 inches of rain.
Hope this helps!
Answer: it’s Sara paid 3
Step-by-step explanation:
