Structured Data MCQs with Answers PDF Download – Test 86

The structured undisguised questionnaire is the one in which the purpose of study is

1. not disclosed to respondents
2. disclosed to respondents
3. interval respondents
4. ratio respondents

The number of emergency cases in hospital for five days are as 12, 15, 18, 16, 14 then variance of sample is

1. 5
2. 20
3. 4
4. 15

The stem and leaf displaying technique is used to present data in

1. descriptive data analysis
2. exploratory data analysis
3. nominal data analysis
4. ordinal data analysis

According to empirical rule, the standard deviation and mean interval that covers approximately 68.27% of data from a frequency distribution is

1. μ±σ
2. 2μ±2σ
3. 3μ±2σ
4. 4μ±4σ

The type of sampling In which each element of population has equally likely chance of occurrence in a random sample is classified as

1. regular and irregular sampling
2. error free sampling
3. inertia sampling
4. simple random sampling