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ANSWER: 31.25%
Explaination:
Suppose (x+y) is the binomial distribution with 5 trials. Given that, probability of exactly two success in five trials of a binomial experiment in which the probability of success is 50%.
So, x = 0.5 and y = 0.5
The term
5C2*x²*y³ representing 2 successes and 3 failures.
Now find the value of this term.
5C2*(0.5)²*(0.5)³ = *
=10*0.03125
= 31.25%
Step-by-step explanation:
the answer is on the pic above
Using proportions, it is found that their mom put 90 candies in the bowl.
<h3>What is a proportion?</h3>A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
For this problem, the total amount is of x, hence, from the text:
- Tom's fraction is
.
- Carlos' fraction is
.
- Mary's fraction was of:
The remaining fraction after Mary was:
This amount is of 12, hence the total number of candies was:
2x/15 = 12
2x = 15 x 12
x = 15 x 6
x = 90.
More can be learned about proportions at brainly.com/question/24372153
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