A recent study found that 80% of all people over 60 years of age wear glasses. A random sample of 10 people over 60 years of age is selected. Find the following probabilities. Give the answer (use 4 decimal points) along with the distribution (binompdf or binomcdf) and the values that you used a) Exactly 5 people will wear glasses. b) At most 7 people wear glasses. c) at least 4 people wear glasses.

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

b.my answer is b.

brainliest

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this