Mathematics

Statistics

Grade 11 · High School

Answer every question first, then press Finish to see your score and explanations.

Question 1 of 20Easy
The mean of the data $4, 6, 8, 10$ is ...
Question 2 of 20Easy
The mode of the data $2, 3, 3, 5, 7$ is ...
Question 3 of 20Easy
The median of the data $1, 3, 5, 7, 9$ is ...
Question 4 of 20Easy
The range of the data $5, 8, 10, 3, 12$ is ...
Question 5 of 20Easy
The mean of the data $7, 7, 7, 7$ is ...
Question 6 of 20Easy
The median of the data $4, 8, 6, 2$ is ...
Question 7 of 20Medium
The mean of the data $6, 7, 8, 9, 10$ is ...
Question 8 of 20Medium
The median of the data $3, 5, 7, 9, 11, 13$ is ...
Question 9 of 20Medium
The average score of 8 students is 75. After one new student joins, the average becomes 76. The new student's score is ...
Question 10 of 20Medium
The mode of the data $4, 5, 5, 6, 6, 6, 7$ is ...
Question 11 of 20Medium
The lower quartile ( $Q_{1}$ ) of the data $2, 3, 4, 5, 6, 7, 8$ is ...
Question 12 of 20Medium
The median of the data $2, 4, 6, 8, 10, 12$ is ...
Question 13 of 20Medium
The mean of the data $4, 6, x, 10$ is 7. The value of $x$ is ...
Question 14 of 20Medium
The upper quartile ( $Q_{3}$ ) of the data $3, 4, 5, 6, 7, 8, 9$ is ...
Question 15 of 20Hard
The mean of 10 data points is 7. If one value, 16, is removed, the mean of the remaining data is ...
Question 16 of 20Hard
The median of the data $8, 3, 5, 7, 9, 4$ is ...
Question 17 of 20Hard
The average score of 15 students is 72. After 5 new students join, the average becomes 74. The average score of the 5 new students is ...
Question 18 of 20Hard
The mean deviation of the data $3, 4, 5, 6, 7$ is ...
Question 19 of 20Hard
The variance of the data $2, 4, 6, 8, 10$ is ...
Question 20 of 20Hard
Frequency table: values 5, 6, 7, 8, 9 have frequencies 2, 3, 4, 3, 2 respectively. The median of the data is ...

0/20 answered