Jamb Mathematics Questions - frequency distribution
Question 21:
I. Rectangular bars of equal width
II. The height of each rectangular bar is proportional to the frequency of the corresponding class interval.
III. Rectangular bars have common sides with no gaps in between
A histogram is described completely by
View Answer & ExplanationII. The height of each rectangular bar is proportional to the frequency of the corresponding class interval.
III. Rectangular bars have common sides with no gaps in between
A histogram is described completely by
Question 22:
The histogram above shows the distribution of monthly incomes of the workers in a company. How many workers earn more than N700.00?
View Answer & ExplanationQuestion 23:
The table above shows the distribution of recharge cards of four major GSM operators. What is the probability that a recharge card selected at random will be GTN or Qtel?
View Answer & ExplanationQuestion 24:
| Marks | 3 | 4 | 5 | 6 | 7 | 8 |
| Frequency | 5 | y - 1 | y | 9 | 4 | 1 |
The table above gives the frequency distribution of marks obtained by a group of students in a test. If the total mark scored is 200, calculate the value of y
Question 25:
| Marks | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| No. of students | 3 | 4 | 1 | 0 | 4 | 5 | 2 | 1 |
The table above shows the distribution of marks of students in a test. Find the probability of passing the test if the pass mark is 5