Accelerated 8 March 2

Accelerated 8

March 2, 2021

Example 1

Create a 2 way table based off the following information. Be prepared to answer questions based on your results.

A survey revealed that 45 people prefer texting and 27 of them do not like making phone calls. There were 35 people who do not prefer texting. 12 of them like making phone calls.

Example 2

Create a 2 way table based off the following information. Be prepared to answer questions based on your results.

100 patrons in a movie theatre were asked if they liked popcorn or candy. Out of 30 patrons who like popcorn, 20 also liked candy. There were 60 patrons who liked candy.

Example 3

Create a 2 way table based off the following information. Be prepared to answer questions based on your results.

Emily surveyed her classmates to determine their favorite pizza toppings. Of the 40 students who prefer pepperoni, 12 are males. Of the 25 students who prefer cheese, 15 are females.

Multiple Choice

Quiz 18 Review Question: Go look up what you answered, keep it the same if it was correct.

Quick Cabs costs less per mile but has a lower fixed fee than Get You There Cabs.

The function   $C\left(m\right)=0.55m+3.75$  models the cost to take an m mile long taxi ride from Quick Cabs. The table below shows the cost to take a cab different distances from Get You There Cabs. Which statement is true about the two cab companies?

• Quick Cabs costs more per mile but has a higher fixed fee than Get You There Cabs.

• Quick Cabs costs less per mile but has a higher fixed fee than Get You There Cabs.

• Quick Cabs costs more per mile but has a lower fixed fee than Get You There Cabs.

• Quick Cabs costs less per mile but has a lower fixed fee than Get You There Cabs.

Multiple Choice

Quiz 18 Review Question: Go look up what you answered, keep it the same if it was correct.

The amount spent to manufacture a toy, x, and the amount of profit, y, earned on sales of the toy for the past five years are shown in the table below. Which statement best explains the correlation coefficient of the data set?

• The correlation coefficient is approximately 0.7, which indicates a strong positive relationship between the amount spent and profit earned.

• The correlation coefficient is approximately -0.84, which indicates a weak negative relationship between the amount spent and profit earned.

• The correlation coefficient is approximately 0.7, which indicates a weak positive relationship between the amount spent and profit earned.

• The correlation coefficient is approximately -0.84, which indicates a strong negative relationship between the amount spent and profit earned.

Multiple Choice

A set of data is shown in the table below. Which linear function best models the data?

• $f\left(x\right)=2.5x+0.5$

• $f\left(x\right)=2.0x+0.5$

• $f\left(x\right)=0.5x+2.5$

• $f\left(x\right)=0.5x+2.0$

Multiple Choice

The table shows per capita consumption of bottles water for selected years, 1980-2005. Based on a line of best fit of the data, about how fast is the consumption of bottled water growing each year?

• 0.59 gallon per capita per year

• 0.86 gallon per capita per year

• 0.91 gallon per capita per year

• 1.09 gallon per capita per year

Multiple Choice

A trucking company collected data on the distance and time required for several deliveries. Using a linear best fit model, approximately how many hours would be needed for a delivery of 225 miles?

• 4.3

• 4.6

• 4.5

• 4.7

Multiple Choice

A teacher surveyed her students about the amount of time the students studied for a test and plotted it with their corresponding scores. The data is shown on the scatterplot below. What does the y-intercept of the best-fit linear model represent?

• A student who studied for 44 minutes would expect a score of about 52 on the test.

• A student who studied for 0 minutes would expect a score of about 44 on the test.

• A student who studied for 48 minutes would expect a score of about 58 on the test.

• A student who studied for 0 minutes would expect a score of about 48 on the test.