Statistics - math word problems - page 17 of 46
Number of problems found: 920
- Children per woman
Calculate the average number of children per woman (arithmetic mean of the number of children) in a certain workgroup of women. The following numbers of children were found: 0, 1, 3, 2, 2, 1, 0, 3, 1, 1, 0, 1. - Outliers
The teacher found the five-number summary of a dataset to be: 0, 5, 7, 14, 17 An observation is considered an outlier if it is below: An observation is considered an outlier if it is above: - Average
The average of 5 numbers is 108. What is their sum? - In center
What number lies in the center between a quarter of a fifth and a half of a third on the number axis? - What is similar fraction
Which of the following is a similar fraction of 9/10,3/5,1/4 - Reciprocal
What is the reciprocal of the sum of the reciprocals of 7 and 6? - Tourist split
Eight tourists went on a trip. How did they split equally into two cars? - Average
If the average(arithmetic mean) of three numbers x,y, and z are 50. What is the average of their numbers (3x +10), (3y +10), (3z+10)? - Mean/average
Calculate the average of the numbers 2.3 4.01 0.65 6. - Straight and right
What is the arithmetic mean of straight and right angles? - Increase the mean
To which number should the number 4 be changed between the numbers 4,5,7, 1,0,9,7,8, -3,5 to increase these numbers' arithmetic mean by 1.25? - Numbers
Find a number on the number line that has the same distance from these numbers: - Variance and average
From 40 data values, a mean of mx = 7.5 and a variance of sx = 2.25 were calculated. It is later found that two values were missing: x₄₁ = 3.8 and x₄₂ = 7. Correct the mean and variance. - Three friends
Cuba, Matthew, and their friend Adam worked at a part-time job over the weekend to fund a joint trip to the Alps planned for spring break. Cuba worked diligently and earned 11,000 CZK. Matthew, however, earned only one-third of the arithmetic mean of Adam - Skiing cost sharing
Anna and Elsa are going skiing in the Alps for the weekend and have agreed to split the costs equally. Anna paid a total of 96 euros for both accommodations in the mountain hotel, and Elza bought 118 euros for both ski passes to the cable cars. How many e - Average price
The sixth grade went on a trip to Moravia. Every 26 pupils paid CZK 320, and the school paid a total of CZK 3,510. What was the average price of a trip per student? - Mean
The mean of 50 items for a student's food is 38.6. When checking the work, he found that he had taken one item as 50 to read as 40 correctly in these circumstances. What should the correct arithmetic mean? - At 5:00
At 5:00 AM, the room temperature was 20 °C. After six hours, the reading was 28 °C. The temperature rose to how many degrees? What was the average change in temperature per hour? - The scores The scores of 10 learners in a test arranged in ascending order are 12, 13, 13, a, (a + 3), (52 - 2a), (2a - 8), 23, 23, and 24. If the median mark is 20, find (a) value of a. (b) mean
- Probability
In an election, 2,400,000 voters out of a total of 6,000,000 voted for party Z. Three voters are selected at random. Let the random variable ξ = {number of voters for party Z among the three selected}. Determine: a) the probability distribution, the distr
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