📊 statistics

1. **Problem statement:** We have a frequency distribution of 120 potatoes by mass intervals and frequencies. We need to estimate the number of potatoes with mass greater than 270

1. **State the problem:** We are given a survey of 2,500 people aged 16–24 and the percentage of respondents who took public transport a certain number of times per week. We want t

1. **State the problem:** We need to determine which statement about internet usage activities by gender is true based on the given percentages. 2. **Analyze each statement:**

1. The problem asks for the range of the number of books. 2. The range of a data set is the difference between the maximum and minimum values.

1. **State the problem:** We want to find the overall relative frequency of teenagers who eat fruit every day based on two groups of survey responses. 2. **Given data:**

1. **State the problem:** We have a frequency distribution with class intervals and their frequencies. We want to draw a histogram and find the mode of the distribution. 2. **Recal

1. **State the problem:** We have a set of data values and need to group them into six classes and then find the relative frequency distribution. 2. **Find the range:** The range i

1. **Problem Statement:** Given a country with a birth rate of 15 per 1,000 population, find the percentage of countries that have a birth rate equal to or greater than 15.

1. **State the problem:** We want to test if the new organic fertilizer increases the mean height of flowering plants compared to the historical mean height of untreated plants, wh

1. **Stating the problem:** We have a study with 500 males and 500 females (total 1000 participants).

1. **State the problem:** We need to find two percentages based on the data:

1. **Problem Statement:** Given the data points \(x = [3,4,7,10,12,14,17]\) and \(y = [15,23,52,84,101,151,179]\), find the exponential regression \(y = a b^x\) and quadratic regre

1. **State the problem:** We are given a set of numbers representing the number of new businesses: 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50. We need to find:

1. **Problem statement:** We have monthly income data for 15 households grouped into income classes with given histogram bar heights (density). We need to create a frequency table,

1. **State the problem:** We are given the data set: 6, 7, 5, 4, 7, 8, 9, 7. We need to find the mean and the mode. 2. **Mean formula:** The mean (average) of a data set is given b

1. The problem provides a frequency distribution table showing the number of restaurants corresponding to ranges of employees. 2. The table is:

1. The problem asks to find the value of $a$ that completes the conditional relative frequency table by row for Non-Fiction texts assigned to students. 2. The table shows relative

1. The problem asks: How many students in the survey said that math was their favorite subject? 2. We are given the conditional relative frequencies for males and females who favor

1. The problem asks for the probability that Juan, a student, cannot run a half-marathon. 2. From the table, the conditional relative frequencies for students are given as:

1. The problem asks: How many people in the survey worked on election day? 2. We are given a conditional relative frequency table with the following data:

1. The problem asks to find the missing value $x$ in the conditional relative frequency table by column. 2. The table shows paint color preference for Children and Adults with tota