Statistics And Data Analysis Questions Practice Question and Answer
8 Q: Find the standard deviation of the following data (rounded off to two decimal places).
5, 3, 4, 7
604 064abdab665d2524cbf2181d5
64abdab665d2524cbf2181d5- 11.48true
- 23.21false
- 34.12false
- 42.45false
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Answer : 1. "1.48 "
Q: If the score of five students is 8,7,9,16,25, then their mean deviation will be.
1045 15f76e762f66ef56de859ab49
5f76e762f66ef56de859ab49- 112false
- 213false
- 35.2false
- 46true
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Answer : 4. "6"
Q: The mean of 12 observations is 15. One more observation is included and the new mean becomes 16. The 13th observation is
999 060701e2edc80477c02cb40df
60701e2edc80477c02cb40df- 120false
- 224false
- 326false
- 428true
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Answer : 4. "28"
Q: The median of a set of 11 distinct observations is 73.2. If each of the largest five observations of the set is increased by 3, then the median of the new set:
573 064b4f4f236fc1bf576504f73
64b4f4f236fc1bf576504f73- 1is 3 times that of the original setfalse
- 2is increased by 3false
- 3remains the same as that of the original settrue
- 4is decreased by 3false
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Answer : 3. "remains the same as that of the original set"
Q: The mean of four different observations is 17.5. When a new observation whose value 20 is added, what will be the new mean?
1295 05eb4ec82336570304e1983e7
5eb4ec82336570304e1983e7- 118true
- 217.5false
- 319false
- 418.5false
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Answer : 1. "18"
Q: A set of data is given. The mean of the set is 35 while the median is set as 60. Find the mode of the data.
950 05f6d7cf25256e8407c2c6dbf
5f6d7cf25256e8407c2c6dbf- 125false
- 230false
- 320false
- 4110true
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Answer : 4. "110"
Q: Runs scored by Rohit sharma in some 3 test Matches against Pakastian are as follows 101, 126, 32, 38, 52, and 40. Find median of the given scores.
1873 05f8930aff28f4b47be2cbc51
5f8930aff28f4b47be2cbc51- 146true
- 246.5false
- 350false
- 447false
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Answer : 1. "46"
Q: What is the mode of the given data?
5, 7, 9, 7, 3, 7, 5, 7, 8, 6, 7
370 064b501fe568e7ff594af64e0
64b501fe568e7ff594af64e0- 17true
- 26false
- 35false
- 43false
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