STATISTICS AND PROBABILITY

• VARIANCE

• MEAN

• MEDIAN

• STANDARD DEVIATION

• VARIANCE

• MEAN

• MEDIAN

• STANDARD DEVIATION

• SAMPLE MEAN

• SAMPLE STANDARD DEVIATION

• SAMPLE VARIANCE

Variance and Standard deviation describe the amount of spread dispersion or variability of the items in a distribution

• True
• False

• MEAN

• AVERAGE

• SUBLIMATION

• SUMMATION

Grammarian use a standard normal distribution table to find the values of areas under normal curve that indicate proportion of the areas being considered.

• True
• False

To find the area under normal curve, we shall do the following EXCEPT.

• Transform the variable (x) into standard score

• Find the value of the median

• Find the value in the normal distribution table.

The shape of the curve of a normal distribution depends upon its mean and standard deviation.

• True
• False

Find in the normal curve table the value of
z = 0.55

• 0.2157

• 0.2123

• 0.2088

• 0.2054

Find in the normal curve table the value of
z = 1.17

• 0.3790

• 0.3770

• 0.3810

• 0.4616