Drowning in bathtubs is a major cause of death in children less than 5 years old. A random sample of 148 parents was asked many questions related to bathtub safety. Overall 85% of the sample said they used baby bathtubs for infants. Estimate the percent of all parents of young children who use baby bathtubs.

≥ 85%

Step-by-step explanation:

n ( sample size ) = 148

0.85 used baby bathtubs

0.15 do not use bathtubs

Determine the percent of parents of young children using Baby bathtubs

P ( n > 0.85 )

let n ( 148 ) represent all parents of young children the estimate of parents using baby bathtub ≥ 85%

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.