SCORES 16 23 29 33.5 36.5 17 24 30 34 38 19 26 31 34 38 19 27 31 34.5 38.5 20 27 32 34.5 39.5 22.5 27 33 35 39.5 41 Find the probability that at least 10 students score more than 31 marks.
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
| SCORES | ||
| 16 | ||
| 23 | ||
| 29 | ||
| 33.5 | ||
| 36.5 | ||
| 17 | ||
| 24 | ||
| 30 | ||
| 34 | ||
| 38 | ||
| 19 | ||
| 26 | ||
| 31 | ||
| 34 | ||
| 38 | ||
| 19 | ||
| 27 | ||
| 31 | ||
| 34.5 | ||
| 38.5 | ||
| 20 | ||
| 27 | ||
| 32 | ||
| 34.5 | ||
| 39.5 | ||
| 22.5 | ||
| 27 | ||
| 33 | ||
| 35 | ||
| 39.5 | ||
| 41 |
Find the
Find the probability that 18 to 70 students score more than 31 marks.
Find the probability that fewer than 80 students score more than 31 marks.
Find the probability that at most 25 students score more than 31 marks
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