📊 statistics

1. The problem is to understand and draw a stem-and-leaf plot, which is a way to organize data to see its distribution. 2. A stem-and-leaf plot splits each data point into a "stem"

1. The problem is to analyze the given data set: 94, 86, 80, 78, 76, 76, 72, 72, 71, 71, 68, 68, 68, 68, 67, 67, 67, 66, 66, 65, 65, 64, 64, 63, 62, 61, 61, 60, 59, 59, 57, 54, 48,

1. The problem asks to draw a stem-and-leaf plot based on previous data. 2. A stem-and-leaf plot organizes data by separating each value into a "stem" (usually the leading digit(s)

1. **Problem Statement:** We are analyzing the relationship between two variables in an organization. Suppose the organization is a retail store, and the two variables chosen are \

1. **Problem Statement:** We choose an organization, for example, a retail store, and select two variables: daily advertising expenditure (in units) and daily sales revenue (in uni

1. **Problem Statement:** Draw a frequency polygon based on the given data set. 2. **Understanding Frequency Polygon:** A frequency polygon is a graph that shows the frequencies of

1. **State the problem:** We have a data set of numbers and need to find the limits of the lowest cluster, the frequency of the lowest cluster, and the frequency of the fifth clust

1. The problem asks for the limits and frequencies of specific clusters in a data set. 2. The "limits" of a cluster refer to the range of values it covers, typically the lower and

1. The problem asks for the class interval of the given data set: 94, 86, 80, 78, 76, 76, 72, 72, 71, 71, 68, 68, 68, 68, 67, 67, 67, 66, 66, 65, 65, 64, 64, 63, 62, 61, 61, 60, 59

1. **Problem Statement:** Given the weight class frequency table for students, calculate the mean, median, mode, mean deviation (simpangan rata-rata), and standard deviation (simpa

1. **Problem Statement:** We have kilometers-per-liter data for 13 cars tested in city and highway conditions. We need to calculate the mean, median, and mode for both city and hig

1. **State the problem:** We are given the line of best fit equation $$y = 2.5x - 50$$ where $x$ is the high temperature in °F and $y$ is the attendance. 2. **Understand the proble

1. **Problem 16:** Determine if each correlation coefficient $r$ is a reasonable estimate for the given scatterplot. - The correlation coefficient $r$ measures the strength and dir

1. Problem 16 asks to determine if each correlation coefficient is a reasonable estimate for the scatterplot shown. 2. The correlation coefficient $r$ measures the strength and dir

1. **Problem:** Find the z-score for a student who scored 72 on a test with a class mean of 65 and a standard deviation of 5. 2. **Formula:** The z-score is calculated by the formu

1. **State the problem:** We are given parking times (in minutes) for weekdays and weekends in a back-to-back stem-and-leaf plot format. We need to determine which group had the gr

1. The problem presents data on "Days Missed" and "Semester Grade" for students and asks us to analyze or interpret this data. 2. A common approach is to explore the relationship b

1. The problem asks to interpret the scatter plot showing the relationship between the number of pieces in a jigsaw puzzle and the recommended completion time in minutes. 2. From t

1. The problem asks us to interpret the scatter plot showing the relationship between the number of pieces in a jigsaw puzzle and the recommended completion time in minutes. 2. Fro

1. **State the problem:** We need to find the least-squares regression line equation $\hat{y} = b_0 + b_1 x$ for the given data points: $(8,3), (4,3), (6,31), (12,36), (-9,0), (-3,

1. **Problem statement:** Ben has plotted a scatter graph of rugby players' heights (cm) vs weights (kg) and drawn a line of best fit. We need to (a) draw the line of best fit and