Calculate the mean, variance and standard deviation for the following distribution : | Class | 30-40 | 40-50 | 50-60 | 60-70 | 70-80 | 80-90 | 90-100 | |-------|-------|-------|-------|-------|-------|-------|--------| | Frequency | 3 | 7 | 12 | 15 | 8 | 3 | 2 |

Question

TextStandard Deviation of Grouped Data

Loading...

Similar Questions

Find the variance and standard deviation for the following data: | xi | 4 | 8 | 11 | 17 | 20 | 24 | 32 | |----|---|---|----|----|----|----|----| | fi | 3 | 5 | 9 | 5 | 4 | 3 | 1 |

TextStandard Deviation of Grouped Data

Find the standard deviation for the following data : | xi | 3 | 8 | 13 | 18 | 23 | |----|---|---|----|----|----| | fi | 7 | 10 | 15 | 10 | 6 |

TextStandard Deviation of Grouped Data

The diameters of circles (in mm) drawn in a design are given below: | Diameters | 33-36 | 37-40 | 41-44 | 45-48 | 49-52 | |-----------|-------|-------|-------|-------|-------| | No. of circles | 15 | 17 | 21 | 22 | 25 | Calculate the standard deviation and mean diameter of the circles. [ Hint First make the data continuous by making the classes as 32.5-36.5, 36.5-40.5, 40.5-44.5, 44.5 - 48.5, 48.5 - 52.5 and then proceed.]

TextStandard Deviation of Grouped Data