📊 statistics

1. The problem asks: What kind of data source can be used to collect bivariate data? 2. Bivariate data involves two variables and their relationship.

1. **Problem statement:** We want to find the sample size needed to estimate the proportion of customers who prefer "express shipping" with 95% confidence and a margin of error (MO

1. The problem asks which data sources can be used to collect bivariate data. 2. Bivariate data involves two variables that can be analyzed to find relationships or correlations.

1. **State the problem:** We have a normally distributed data set with 12,658 scores. We want to find how many scores are expected to be more than two standard deviations away from

1. A double bar graph is used to compare two sets of related data side by side. 2. It helps visualize differences and similarities between two groups across various categories.

1. **Problem Statement:** We have a set of examination scores: 55, 65, 72, 40, 70, 65, 69, 50, 45, 80, 48, 59, 76, 77, 55, 90.

1. The problem asks: Which of the following is an example of bivariate data? 2. Bivariate data involves two variables measured together to see if there is a relationship between th

1. **State the problem:** We need to find the mean mass of a group of students given the frequency distribution of their masses in intervals. 2. **Formula for mean in grouped data:

1. **Problem Statement:** We are given a frequency distribution table and asked to find the assumed mean, median interval, estimate the mode, calculate the semi-interquartile range

1. The problem asks: If Mrs. Mackle has 70 students, how many chose vanilla based on the graph data? 2. From the graph description, the bar for Vanilla reaches slightly above 45 st

1. **State the problem:** We have weights of oranges normally distributed with mean $\mu=297$ g. Given that 79% weigh more than 289 g and 9.5% weigh more than 310 g, find the proba

1. **Problem 1: Heights of adult males** Given: Heights are normally distributed with mean $\mu=180$ cm and standard deviation $\sigma$ cm (unknown).

1. The problem asks to identify what is wrong with the survey conducted by StatCrunch. 2. The survey asked users if they expect to be better off than their parents, and 587 out of

1. The problem asks to identify what is wrong with a study financed by a fitness equipment company that showed lowered blood pressure after treadmill exercise. 2. The key issue is

1. The problem involves analyzing the relationship between Lemon Imports and Crash Fatality Rate using the given data points. 2. We can model the relationship with a linear equatio

1. **State the problem:** We have data for Lemon Imports and Crash Fatality Rate over five points. We want to understand the relationship between these two variables, possibly by f

1. **State the problem:** We are given body temperatures recorded at 8 AM and 12 AM for five subjects or days. We need to determine if there is a meaningful way to match each 8 AM

1. **State the problem:** We want to determine if the weight loss program is statistically and practically significant given that 7 subjects lost an average of 45 lbs and there is

1. **State the problem:** We want to determine if the weight loss program results are statistically significant based on the probability of obtaining the results by random chance.

1. The problem is to understand the given data values: 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 0, and relate them to the categories numérique, trigonométrie, and algèbre. 2. These

1. **Problem statement:** Construct a 95% confidence interval for the percentage of university students who own a laptop based on a sample of 400 students, where 340 own a laptop.