The results of a poll show that between 75% and 83% of consumers prefer chip a to chip b. what is the point estimate for the percent of consumers that prefer chip a to chip b?

79%
8%
75%
83%

79%

Step-by-step explanation:

First of all, the point estimate is a value located in between the upper confidence limit and the lower confidence limit, it identifies a point in some parameter space.

This question provides us with an interval estimate which is a range of values used to estimate a population parameter.

Interval Estimate = 75% to 83%

75% = Lower confidence limit

83% = Upper confidence limit

Point estimate = middle value

=

= 79%

d 192

step-by-step explanation:

we find our area to find area we multiply thoses numbers to get our answer so our area is 192

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct