Amy and Miranda are arguing over who gets to use the car on Saturday night. Amy wants to go to see a play with her friends and Miranda wants to go to the mall with her friends.
Which of the following are fair methods for making a decision?

A) The girls have a scale that is accurate to the nearest hundredth of a gram. They put a sack of potatoes on the scale. If the hundredths digit is even, Miranda gets to use the car. If the hundredths digit is odd, Amy gets to use the car.

B) The girls decide to look up the 75th digit of pi - something neither of them has any knowledge of. If the 75th digit is even, Miranda gets the car. If it is odd, Amy gets the car.

C) Amy pulls out her graphing calculator. She commands the calculator to generate a random integer from
1 to 15 (inclusive). If the number is 7 or below, Amy gets the car. If the number is
9 or above, Miranda gets the car. If the number is 8, they generate a new number and repeat.

D) Amy throws two pennies into the air. If they are both heads, Amy gets the car. Otherwise, Miranda gets the car.

450 is the final answer! : )

the results from a pre-test for students for the year 2000 and the year 2010 are illustrated in the box plot. what do these results tell us about how students performed on the 29 question pre-test for the two years?

if we compare only the lowest and highest scores between the two years, we might conclude that the students in 2010 did better than the students in 2010. this conclusion seems to follow since the lowest score of 8 in 2010 is greater in value than the lowest score of 6 in 2000. also, the highest score of 28 in 2010 is greater in value than the highest score of 27 in 2000.

but the box portion of the illustration gives us more detailed information. the middle bar in each box shows us that the median score of 20 in 2000 is greater in value than the median score of 17 in 2010. further, we note that the box and whiskers divide the illustration into four pieces. each of these four pieces represents the same portion of students. so, the upper half of the students in 2000 scored in the same score range as the upper one-fourth of the students in 2010, see the illustration at a score of 20.

by considering the upper one-fourth, upper half, and upper three-fourths instead of just the lowest and highest scores, we would conclude that the students as a whole did much better in 2000 than in 2010. we would conclude that as a whole the students in 2010 are less prepared than the students in 2000.

in this section, we discuss box-and-whisker plots and the five key values used in constructing a box-and-whisker plot. the key values are called a five-number summary, which consists of the minimum, first quartile, median, third quartile, and maximum.

step-by-step explanation:

so then what are you asking?

step-by-step explanation:

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;