Answer:
girls to boys = 3 : 7
Step-by-step explanation:
girls to boys = 15 : 35
simplify by dividing with 5
girls to boys = 3 : 7
Answer:
0.1994 is the required probability.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 166 pounds
Standard Deviation, σ = 5.3 pounds
Sample size, n = 20
We are given that the distribution of weights is a bell shaped distribution that is a normal distribution.
Formula:
Standard error due to sampling =

P(sample of 20 boxers is more than 167 pounds)
Calculation the value from standard normal z table, we have,
0.1994 is the probability that the mean weight of a random sample of 20 boxers is more than 167 pounds
Answer:
No
Step-by-step explanation:
No because if it's 20,000 on 1 it should be 40,000 on 2 but its not so its not proportional
Answer:
You would get 17
Step-by-step explanation:
7 - (-10) = 17
Hope this helps!