Mid Semester Test quizz

The Correlation between speed and no. of challans is ?

• 
• 
• 
• 

When can a data be normal?

• Mean=Median=Mode

• Skewness is zero

• It is mesokurtic

• 

Kurtosis is a measure of------

Statistics is a base for data science, express your views on it.

A firm has the data of the millions of households that have purchased one or more of the company’s

products. To know about their attitude concerning

the timing of the telephone calls, firm would like to conduct a survey of purchasers to

acquire information. The president of

the company would like to know the views of all pur-

chasers but would also like to compare the attitudes

of people in the West, South, North, and East.

Which sampling plan should company use?

• Cluster Sampling

• Simple Random Sampling

• Area Sampling

• Stratified Sampling