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#### Related Questions VIEW ALL [6]

Calculate the mean of the following distribution using step deviation method.

Marks | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 |

Number of students |
10 | 9 | 25 | 0 | 16 | 10 |

Calculate the mean of the following distribution :

Class Interval | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 |

Frequency | 8 | 5 | 12 | 35 | 24 | 16 |

Using a graph paper draw a histogram of the given distribution showing the number of runs scored by 50 batsmen. Estimate the mode of the data:

Runs scored |
3000- 4000 |
4000- 5000 |
5000- 6000 |
6000- 7000 |
7000- 8000 |
8000- 9000 |
9000- 10000 |

No. of batsmen |
4 | 18 | 9 | 6 | 7 | 2 | 4 |

If the mean of the following distribution is 24, find the value of 'a '.

Marks | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 |

Number of students |
7 | a | 8 | 10 | 5 |

Calculate the mean of the distribution given below using the shortcut method.

Marks | 11-20 | 21-30 | 31-40 | 41-50 | 51-60 | 61-70 | 71-80 |

No. of students | 2 | 6 | 10 | 12 | 9 | 7 | 4 |