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%
Learn more about geometric distribution:
brainly.com/question/14957440
#SPJ4
Answer:
(X-9)(x-3)
Step-by-step explanation:
Use Photomath it will probably help
Answer
do I add the numbers in faction form
Step-by-step explanation:
<u>1.</u> 4/10 + 30/100 = 7/10
<u>2.</u> 60/100+2/10 = 4/5
<u>3.</u> 9/10 + 10/100 = 1
<u>4.</u> 70/100+2/10 = 9/10
<u>5.</u> 1/10 + 40/100 = 1/2
You just have to make them common denominator and simplify