Standard Deviation Answers

Which weights are within 2 standard deviations of the mean? Select three options.

The students in Marly’s math class recorded the dimensions of their bedrooms in a frequency table.

Grace is looking at a report of her monthly cell-phone usage for the last year to determine if she needs to upgrade her plan. The list represents the approximate number of megabytes of data Grace used each month.700, 735, 680, 890, 755, 740, 670, 785, 805, 1050, 820, 750

Each histogram represents a set of data with a median of 29.5. Which set of data most likely has a mean that is closest to 29.5?

The histogram shows the weekly rates charged by different daycares for a 2-year-old child.

Sixteen students each measured the weight of 25 pennies, in grams. The list shows their measurements.60, 62, 65, 59, 63, 63, 63, 62, 64, 62, 60, 61, 66, 64, 61, 65In each graph below, the mean is indicated by a solid vertical line segment while the standard deviations from the mean are indicated by dotted vertical line segments. Which graph represents the distribution of weights?

Bryant collects a set of 20 values that represent the lengths of worms he found in the garden. The variance of the set of values is 36.What is the standard deviation from the mean? Round the answer to the nearest tenth if necessary.

Which statements are true about a histogram with one-minute increments representing the data? Select three options.

Raquel and Van live in two different cities. As part of a project, they each record the lowest prices for a gallon of gas at gas stations around their cities on the same day. Raquel’s data show and . Van’s data show and .Which statement is true about their gas-price data?

The graph shows a distribution of data.