**941. The sum of deviations of values from their mean is always**

A.1**B.0**

C.2

D.3

**942. The average of all observations in a set of data is known as**

A.median

B.range**C.mean**

D.mode

**943. If the values taken by a random variable are negative, the negative values will have ___________****A. Positive probability**

B. Negative Probability

C. May have negative or positive probabilities

D. Insufficient data

**944. The variable that assigns a real number value to an event in a sample space is called ___________**

A. Random variable

B. Defined variable

C. Uncertain variable

D. Static variable

**945. The median in the set 6, 4, 2, 3, 4, 5, 5, 4 would be**

A.3

B.6

C.5**D.4**

**946. Cumulative frequency polygon is also called****A.ogive**

B.histogram

C.absicca

D.sigma

**947. Mean ,median and mode are the part of****A.measures of central tendency**

B.measures of dispersion

C.logarithms

D.proportions

**948. The number of times each value appears is called the value’s**

A.range

B.mode**C.frequency**

D.standard Deviation

**949. The three points that divides the set into 4 equal group are called**

A.deciles

B.percentiles**C.quartiles**

D.none of above

**950. The difference between the largest value and the smallest value is called**

A.mean

B.mode**C.range**

D.median