Three times the age of Abel is four more than the age of Asare.In three years,the sum of their ages will be 30 years.Find their
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Answer:
A. P=0.4013
B. P=0.9884
C. P=0.3222
Step-by-step explanation:
We can model this with a binomial random variable.
The sample size is n=10.
The probability is p=0.05 for scrap and p=0.05+0.15=0.20 for degraded or scrap.
The probability of having k scrap gears in the sample is:
The probability that one or more is scrap can be calculated as 100% less the probability that no one is scrap:
The probability that 8 or more are not scrap is equal to the probability of having 2 or less that are scrap:
The probability that more than two are degraded or scrap (p=0.2) is calculated as:
Step-by-step explanation:
Since we have given that
Price of ticket for amusement park = $65
Amount in her checking account = $125
Amount in her wallet = $20
So, as we know that she only need $65 for the ticket,
As she had $20 already in her wallet so,
She need to withdraw the remaining amount from her checking account
So, she has to withdraw $45 from her checking account.
Amount left in her account will be