Which explains whether or not Sahira's sample is representative? No, it is not representative because literature books were chosen much more often than the other types. Yes, it is representative because each type of book was chosen a unique number of times. Yes, it is representative because each type of book was represented in the approximate proportion that exists in the library. Yes, it is representative because each type of book was selected as part of the sample.

dude   i don't even know. i've been trying for hours.

step-by-step explanation:

correct answer is option b.

step-by-step explanation:

the true statement about geometric figure is option b that is one line can be drawn through all three points.

if three points are on the same plane, they can be connected by a line.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;