Predicting in Data Analysis Worksheet

Predicting in Data Analysis

Read each question carefully and use the provided data or graphs to make predictions and answer the questions.

The bar graph below shows the number of books read by students in a reading club over four months.

1. Based on the trend, predict the number of books students might read in May. Explain your reasoning.

A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. If you pick a marble at random, answer the following:

2. The probability of picking a red marble is  .

3. If you pick a marble 100 times, you would predict picking a blue marble approximately   times.

4. A survey found that 60% of students prefer pizza for lunch. If there are 300 students in the school, how many would you predict prefer pizza?

5. True or False: If a scatter plot shows a strong positive correlation between two variables, it means one variable causes the other to increase.

6. A baker recorded the number of cakes sold each day for a week: 15, 18, 20, 22, 25, 28, 30. If this trend continues, predict the number of cakes the baker will sell on the eighth day. Explain your prediction.