Real World Data and Statistics

Nadia is conducting an experiment where she repeatedly draws a marble from a bag without looking, records its color, and replaces it. She conducted 40 trials in the experiment, with the results shown below. If Nadia were to conduct the same experiment with 2,000 draws, approximately how many times could she expect to draw a yellow marble?

• 400

• 125

• 250

• 500

The table shows the types of sandwiches sold at a deli yesterday. One customer bought half the peanut butter sandwiches and half the grilled cheese sandwiches that were sold. Each sandwich cost $6. How much did the customer pay?

• $24

• $42

• $84

• $18

The table shows the results of a survey about favorite types of stores. Determine the relative frequency for each store.

• clothing: 38%

  electronics: 22%

  pet: 10%

  candy: 30%

• clothing: 19%

  electronics: 11%

  pet: 5%

  candy: 15%

• clothing: 50%

  electronics: 25%

  pet: 5%

  candy: 20%

• clothing: 35%

  electronics: 23%

  pet: 15%

  candy: 27%

What is the total number of students speaking different languages?

• 20

• 25

• 50

• 100

What is the interquartile range (IQR)?

• The sum of the first quartile and the third quartile.

• The data set divided into four equal parts.

• The difference between the first quartile and the third quartile.

• The median multiplied two.

What does the mean absolute deviation (MAD) measure in a data set?

• The average distance from the median.

• The average distance from the mean.

• The difference between the highest and lowest values.

• The sum of all data points divided by the number of points.

What is the median of a data set?

• The most frequently occurring value.

• The average of all data points.

• The middle number when the data is listed in order.

• The difference between the highest and lowest values.

What is the purpose of a simulation in the context of chance experiments?

• To record the actual results of the experiment.

• To predict the exact outcome of one specific trial.

• To estimate the probability of a real-world event.

• To demonstrate the certainty of an event.

What is the range of a data set?

• The average of all data points.

• The middle value when the data is listed in order.

• The most frequently occurring value.

• The difference between the highest and lowest values.

What does a scatterplot primarily show?

• The relationship between two variables.

• The distribution of a single variable.

• The mean of the data set.

• The probability of an event happening.