I need help in solving this, I dont want an answer. 10. The Wilson family had a family portrait framed for their living room. Th
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Answer: Mean = 5.25
Variance = 1.3125
Standard deviation = 1.456
Step-by-step explanation:
The mean and variance of a binomial distribution with parameters n (number of trials) and p ( the probability of getting success in each trial) is given by :-
Given : The total number of enter a clothing store : n=7
The probability of a customer making a purchase= 0.75
Now,
The ratio shown in fraction form would be; 
Now to convert it to its simplest form, you need to find their greatest common factor; (so in this case it would be 28...cause 28 goes into 56 evenly)
*Now divide both terms by 28
28 ÷ 28 = 1
56 ÷ 28 = 2
so your ratio 28 to 56 in simplest form is..
Hope this helps :)
Now to convert it to its simplest form, you need to find their greatest common factor; (so in this case it would be 28...cause 28 goes into 56 evenly)
*Now divide both terms by 28
28 ÷ 28 = 1
56 ÷ 28 = 2
so your ratio 28 to 56 in simplest form is..
Hope this helps :)