3 years ago

The results of a survey asking 500 people about their favorite ice cream flavor are shown in the table.

Mathematics

1 answer:

Stels [109]3 years ago

7 0

Answer:

Between Chocolate and Banana

Step-by-step explanation:

Theoretically, I think the experimental probability differs the most between chocolate ice cream flavor and banana ice cream flavor because out of the people surveyed, most people love chocolate and the least love banana.

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10-mg Atorvastatin Placebo Headache 15 65 No headache 17 3 3. If two different subjects are randomly selected, find the probabil

balu736 [363]

Answer:

0.6384

Step-by-step explanation:

Given that:

10-mg Atorvastatin Placebo Headache 15 65 No headache 17 3

Hence the total of number of patients = 15 + 65 + 17 + 3 = 100 patients

The number of patients with headache = 15 + 65 = 80 patients

Also, C(n, x) is the number of combinations in which n items can be chosen taken x at a time it is given by the formula:

$C(n,x)=\frac{n!}{(n-x)!x!}$

The the probability that if two different subjects they both had a headache = $\frac{C(80,2)}{C(100,2)}=\frac{\frac{80!}{(80-2)!2!} }{\frac{100!}{(100-2)!2!} } =\frac{3160}{4950}=0.6384$