MP TET · Mathematics and Science (Varg-2)
Mean, median, mode, frequency tables and probability basics.
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Q1 · Statistics and Probability · EASY
The marks obtained by 10 students in a mathematics test are: 45, 50, 55, 60, 65, 70, 75, 80, 85, 90. What is the mean (average) of these marks?
Q2 · Statistics and Probability · MEDIUM
The following frequency table shows the number of books read by 30 students during summer vacation: Number of books: 0, 1, 2, 3, 4 Frequency: 3, 7, 10, 6, 4 What is the median number of books read?
Q3 · Statistics and Probability · EASY
A bag contains 5 red balls, 3 blue balls, and 2 green balls. If one ball is drawn at random, what is the probability of drawing a blue ball?
Q4 · Statistics and Probability · HARD
The ages (in years) of 15 teachers in a school are: 25, 28, 30, 30, 32, 35, 35, 35, 38, 40, 42, 45, 45, 48, 50. If the mode is 35 and the median is 35, what is the value of (Mean - Median)?
Q5 · Statistics and Probability · EASY
The mean of the following data is 18. Find the value of k if the observations are: 12, 15, k, 22, 26.