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21
For a continuous frequency distribution, range is defined as
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Answer: Option B
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22
The value of β2 can be:
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Answer: Option D
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23
In binomial distribution, if number oftrials (n) is infinitely large, the probability of success (p) of occurrence of an event is close to . . . . . . . . and probability of failure (q) of occurrence of an event close to . . . . . . . .
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Answer: Option C
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24
Since values of both the regression coefficients, bxy and byx are negative, the value of correlation r is
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Answer: Option B
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25
Arrange the following statements in sequence for applicability of Chi-square test.
1. Observations are recorded and samples are collected on a random basis.
2. Check whether all the members in the sample must be independent.
3. Check that no group contain items less than 10 otherwise regrouping needs to be done.
4. Check that are constraints are linear.
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Answer: Option A
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26
Assertion (A) The CLT is useful when examining returns for a stock or index because it simplifies many analysis procedures.
Reason (R) An appropriate sample size depends on the data available.
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Answer: Option C
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27
According to . . . . . . . ., "is a relatively large number of items be chosen at random from a group, such items are on average almost sure to have the characteristics of the group."
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Answer: Option B
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28
When coefficient of skewness in negative
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Answer: Option A
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29
If two variables, x and y, have a very strong linear relationship, then:
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Answer: Option C
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30
During one year the ratio of prices of two commodities is 3, whereas during the next year it is 2. For averaging these ratio-
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Answer: Option C
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