Graphs & Data Interpretation 1 — Problem Solving & Data Analysis

Questions in this quiz (8)

1. Every week, Sofia saves an additional $$10$$ dollars in her savings jar. Which type of function best models the total amount of money in her jar as a function of time?

   • Increasing linear
   • Decreasing linear
   • Increasing exponential
   • Decreasing exponential

2. The table below shows the number of bacteria after each hour.Which function best models the number of bacteria $$N(t)$$ after $$t$$ hours?

   • $$N(t)=2000t$$
   • $$N(t)=500+1500t$$
   • $$N(t)=500(4^{-t})$$
   • $$N(t)=500(4^{t})$$

3. A cyclist trains for $$50$$ minutes, alternating between slow riding, steady pacing, and sprinting. The graph shows the cyclist's speed in miles per hour as a function of time in minutes.Which segment of the graph represents the times when the cyclist's speed is the greatest?

   • $$10$$
   • $$15$$
   • $$25$$
   • $$50$$

4. The histogram summarizes the weekly miles run by $$50$$ runners. The intervals are $$[5,10)$$, $$[10,20)$$, $$[20,35)$$, $$[35,45)$$, and $$[45,55)$$ with frequencies $$10$$, $$24$$, $$10$$, $$5$$, and $$1$$ respectively. Which of the following could be the median and mean of the distribution? Which of the following could be the median and mean of the distribution?

   • Median $$=16$$, mean $$=18$$
   • Median $$=20$$, mean $$=22$$
   • Median $$=24$$, mean $$=30$$
   • Median $$=30$$, mean $$=28$$

5. Consider the scatter plot above. When rounded to the nearest whole number, what is the slope of the line of best fit for this scatter plot?

   • $$\frac{1}{2}$$
   • $$1$$
   • $$\frac{5}{4}$$
   • $$2$$

6. How many students at Kennedy High School are not in the band?

   • $$60$$
   • $$140$$
   • $$200$$
   • $$295$$

7. Consider this set of numbers: $$2,4,6,6,8,11.$$ What is the mean of this set?

   • $$6$$
   • $$\frac{37}{6}$$
   • $$\frac{35}{6}$$
   • $$7$$

8. Consider this set of numbers $${8,4,6,11,8,2}$$. What is the median of this set?

   • $$6$$
   • $$7$$
   • $$8$$
   • $$11$$