ICS Part 2 Statistics Online Test With Answers

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ICS Part 2 Statistics Online Test

Sr. # Questions Answers Choice
1 Sampling in which a sampling unit can be selected more than once is called simple sampling sampling with replacement sampling without replacement none of these
2 Random sampling provides reliable ------------------- values attributes variables estimates
3 Another name of probability sampling is quota sampling simple sampling stratified sampling random sampling
4 The descriptive measure on the sample observation is called ------------------ parameter statistic error true value
5 Non probability form of sampling is quota sampling sampling with replacement sampling without replacement none of these
6 One of the great advantages of sampling is waste time save time use time need time
7 The error which arises due to faulty sampling frames and processing of data is called random error sampling error non-sampling error systematic error
8 A descriptive measure of a population is called sample statistic parameter erro
9 The difference of the true value of population parameter and corresponding value of sample statistic is called non-sampling error sampling error random error none of these
10 The probability distribution of proportions is called proportional distribution population distribution sample distribution sampling distribution
11 In a systematic sampling every ------------ unit is selected 1<sup>st</sup> last xth normal
12 A complete list of elements in a population is called population sampling design sampling frame sampling unit
13 P(μ-2σ < X=< μ + 2σ)= 0.6827 0.9545 0.9973 0.9827
14 P ( | Z | > a) = <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">2</span><span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">ø(a)&nbsp;- 1</span> <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">ø(a)</span> <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">2&nbsp;ø (-a)</span> <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">1-ø(a)</span>
15 Points of inflexion of normal curve are at <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">μ and&nbsp;σ</span> <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">x=μ-σ and x=μ+σ</span> <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">μ and 2σ</span> <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">μ = o</span>
16 All odd order moments about mean are unique zero different one
17 Total probability under the normal curve is 1 0 -1 <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">∞</span>
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