Histograms Quiz
7 questions · easy to harder · Statistics · score and step-by-step answers
How it works
- 7 questions, about 21 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 0 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Histogram of 12, 25, 31, 18, 27, 22, 35, 29, 15, 24 classes of 10; how many are 20 or moreType the answer.
2 Question 2
Histogram of 5, 12, 18, 9, 14, 21, 11, 16, 13, 7 classes of 5; how many are less than 15Type the answer.
3 Question 3
Histogram of 23, 37, 41, 28, 35, 44, 31, 26, 39, 33, 47 classes of 10; how many are 30 or moreType the answer.
4 Question 4
Histogram of 8, 15, 22, 11, 19, 26, 13, 17, 24, 16, 20 classes of 5; how many are less than 15Type the answer.
5 Question 5
Histogram of 2, 13, 25, 8, 17, 21, 34, 11, 19, 15, 28, 16, 23, 12 classes of 10; how many are 20 or moreType the answer.
6 Question 6
Histogram of 105, 118, 112, 127, 109, 121, 115, 133, 119, 124, 111, 116 classes of 10; how many are less than 120Type the answer.
7 Question 7
Histogram of 72, 85, 91, 68, 77, 83, 95, 79, 88, 74, 81, 86, 69, 92 classes of 10; how many are 80 or moreType the answer.