You need to use the binomial probability formula:
where:
n = total number of events = 10
k = number of events we are testing = 6
p = probability of event happening = 0.5
= 210×0.015625×0.0625
= 0.205078
Hence, the probability of getting 6 boys out of 10 births is
p = 0.205.
Answer:yes
Step-by-step explanation:they are basically the the same line
11 with B
12 with C
13 with A
Answer:
10.4%
Step-by-step explanation:
Sung Lee invests $3,000 at age 18.
He hopes the investment will be worth $6,000 when he turns 25, that is, after 7 years.
The interest compounds (Compound Interest). The formula for the final amount in a compound interest is:
where P = Principal (Amount invested) = $3000
A = final amount = $6000
R = rate
T = number of years = 7 years
This implies that:
Find the 7th root of 2:
=> R = 10.4%
Hence, the rate would need to be 10.4% for him to achieve his goal.