If about 20% of British children are deficient in vitamin and doctors test a group of elementary school children, the probability that the first vitamin d-deficient child is the 8th one tested is 4.19% determined using geometric distribution formula.
In probability and statistics, geometric distribution refers to the probability that first success would occurs after n number of trials and is given by:
P(X)=q^(x-1)p
Where p is the probability of success and q is (1-p)
In this case,
p=probability of children deficient in vitamin= 0.2
q= probability of children not deficient in vitamin= 0.8
Hence,
P(8)=0.8^(8-1)*0.2= 0.0419
Hence, the probability that 8th child is deficient is 4.19%
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Answer:
25.5 m
Step-by-step explanation:
solve for the area of the triangle and the rectangle separately, then add the values together.
Jason has $2 worth of dimes and quarters. He has 13 more dimes than quarters. The Number of dimes = 15 and Number of quarters = 2.
<h3>What is a linear equation?</h3>
A linear equation is an equation that has the variable of the highest power of 1. The standard form of a linear equation is of the form Ax + B = 0.
The total money = $2 = 200 cents
Types of coins are dimes and quarters
Number of dimes are 13 more than quarters
let number of dimes be x and quarters be y
so our equation
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Answer:
Janet has three dollars. She decides to start saving money for five months. She wants to have a total amount of fifteen dollars at the end of the five-month period. How much money should Janet save per month?
She starts with three, and p is the amount of money she needs to save per month, and at the end of the period, she should have saved a total of fifteen dollars. In order to solve it, you must find what 12 divided by 5 is and write it as an amount of money. The answer is $2.40 or 2.4.
Step-by-step explanation:
Answer:
152 cm sq.
Step-by-step explanation:
