Question

length of shells in inches

1. robin collected shells during her vacation. she recorded the length of the shells to the nearest inch in a dot plot. how many shells were 5 inches long?
2. how many shells were 7 inches long or longer?

Explanation:

Sub - Question 1

Step1: Identify the dot plot for 5 inches

Look at the dot plot above the number 5 on the horizontal axis.

Step2: Count the dots for 5 inches

Count the number of dots (representing shells) above 5. From the plot, there are 3 dots.

Step1: Identify the relevant lengths

We need to consider lengths 7, 8, and 9 inches (since we want 7 inches or longer).

Step2: Count dots for each length

• For 7 inches: Count the dots above 7. There are 2 dots.
• For 8 inches: Count the dots above 8. There is 1 dot.
• For 9 inches: Count the dots above 9. There are 3 dots.

Step3: Sum the counts

Add the number of dots for 7, 8, and 9 inches: \(2 + 1+ 3=6\).

Answer:

3

Sub - Question 2