Histograms with unequal class widths: check 1
Difficulty: ★★☆Info
Maths4U Original · Short practice
A continuous measurement has the grouped frequency table below.
| Class | Frequency |
|---|---|
| \(\displaystyle 0\le x<3\) | 15 |
| \(\displaystyle 3\le x<9\) | 18 |
| \(\displaystyle 9\le x<18\) | 36 |
Find the frequency density of the first class.
Enter one exact number or fraction unless the question specifies rounding. If it asks for a coefficient of π, enter that coefficient only. Give full reasoning separately for written problems.
Histograms with unequal class widths: review variant 1
Difficulty: ★★☆Info
Maths4U Original · Short practice
A continuous measurement has the grouped frequency table below.
| Class | Frequency |
|---|---|
| \(\displaystyle 0\le x<4\) | 24 |
| \(\displaystyle 4\le x<12\) | 32 |
| \(\displaystyle 12\le x<24\) | 60 |
Find the frequency density of the first class.
Enter one exact number or fraction unless the question specifies rounding. If it asks for a coefficient of π, enter that coefficient only. Give full reasoning separately for written problems.
Histograms with unequal class widths: check 2
Difficulty: ★★☆Info
Maths4U Original · Short practice
A continuous measurement has the grouped frequency table below.
| Class | Frequency |
|---|---|
| \(\displaystyle 0\le x<4\) | 24 |
| \(\displaystyle 4\le x<12\) | 32 |
| \(\displaystyle 12\le x<24\) | 60 |
Find the frequency density of the second class.
Enter one exact number or fraction unless the question specifies rounding. If it asks for a coefficient of π, enter that coefficient only. Give full reasoning separately for written problems.
Histograms with unequal class widths: review variant 2
Difficulty: ★★☆Info
Maths4U Original · Short practice
A continuous measurement has the grouped frequency table below.
| Class | Frequency |
|---|---|
| \(\displaystyle 0\le x<5\) | 35 |
| \(\displaystyle 5\le x<15\) | 50 |
| \(\displaystyle 15\le x<30\) | 90 |
Find the frequency density of the second class.
Enter one exact number or fraction unless the question specifies rounding. If it asks for a coefficient of π, enter that coefficient only. Give full reasoning separately for written problems.
Histograms with unequal class widths: check 3
Difficulty: ★★☆Info
Maths4U Original · Short practice
A continuous measurement has the grouped frequency table below.
| Class | Frequency |
|---|---|
| \(\displaystyle 0\le x<5\) | 35 |
| \(\displaystyle 5\le x<15\) | 50 |
| \(\displaystyle 15\le x<30\) | 90 |
Find the frequency density of the third class.
Enter one exact number or fraction unless the question specifies rounding. If it asks for a coefficient of π, enter that coefficient only. Give full reasoning separately for written problems.
Histograms with unequal class widths: review variant 3
Difficulty: ★★☆Info
Maths4U Original · Short practice
A continuous measurement has the grouped frequency table below.
| Class | Frequency |
|---|---|
| \(\displaystyle 0\le x<6\) | 12 |
| \(\displaystyle 6\le x<18\) | 72 |
| \(\displaystyle 18\le x<36\) | 126 |
Find the frequency density of the third class.
Enter one exact number or fraction unless the question specifies rounding. If it asks for a coefficient of π, enter that coefficient only. Give full reasoning separately for written problems.
Histograms with unequal class widths: check 4
Difficulty: ★★☆Info
Maths4U Original · Short practice
A continuous measurement has the grouped frequency table below.
| Class | Frequency |
|---|---|
| \(\displaystyle 0\le x<6\) | 12 |
| \(\displaystyle 6\le x<18\) | 72 |
| \(\displaystyle 18\le x<36\) | 126 |
Find the total frequency represented by all histogram bars.
Enter one exact number or fraction unless the question specifies rounding. If it asks for a coefficient of π, enter that coefficient only. Give full reasoning separately for written problems.
Histograms with unequal class widths: review variant 4
Difficulty: ★★☆Info
Maths4U Original · Short practice
A continuous measurement has the grouped frequency table below.
| Class | Frequency |
|---|---|
| \(\displaystyle 0\le x<7\) | 21 |
| \(\displaystyle 7\le x<21\) | 98 |
| \(\displaystyle 21\le x<42\) | 21 |
Find the total frequency represented by all histogram bars.
Enter one exact number or fraction unless the question specifies rounding. If it asks for a coefficient of π, enter that coefficient only. Give full reasoning separately for written problems.