Answer:
22 students
Step-by-step explanation:
55% of 40 equals 22
The formula for the surface area of a prism is
A = 2 (wh + wl + lh)
where A is the surface area
w is the width
l is the length
h is the height
w = 8 x 2 = 16
l = 6 x 2 = 12
h = 4 x 2 = 8
substitute to the given formula
A = 2 ( (16 x 12) + ( 16 x 8 ) + ( 12 x 8) )
A = 832 sq cm is the surface area of the new rectangular prism
316.80 feet, this is from a conversion on google, may not be 100% accurate.
The effect of this increase <u>will reduce the variability of the estimate</u>.
<u>Step-by-step explanation</u>:
Variability of a sample can be determined with the help of variance and standard deviation. Sampling variability shows the variation in the estimate between the samples.
Variability is defined as the how close the scores in the distribution are to the middle of the distribution.
In the above scenario, the polling company increases the size of the random sample of voters before election. The proportion of the voters is estimated with the help of poll. The effect of increasing the sample is to reduce the variability of the estimate.
