Probability., an insurance salesman sells policies to 5 men, all of identic...

an insurance salesman sells policies to 5 men, all of identical age in good health. the probability that a man of this particular age will be alive 30 years hence is 2/3.Find the p

Statistics., the mean and standarddeviation of set a is -x ans s respective...

the mean and standarddeviation of set a is -x ans s respectively.find the mean and standard deviation of set b

The arithmetic mean, Arithmetic mean Arithmetic means is commonly know...

Arithmetic mean Arithmetic means is commonly known as average or mean it is acquired by first of all summing up the values provided and by dividing the total value by the tota

Statistics, the median of a continuous frequency distribution is 21.if each...

the median of a continuous frequency distribution is 21.if each observation is increased by 5. find the new median

Geometry , solve for x and y 2x+3y=12 and 30x+11y=112

solve for x and y 2x+3y=12 and 30x+11y=112

1trig, how do you find the tan, sin, and cos.

how do you find the tan, sin, and cos.

Arithmetic sequences and series,

Prove that xa+ar=xb+br of circle, In figure, XP and XQ are tangents from X ...

In figure, XP and XQ are tangents from X to the circle with centre O. R is a point on the circle. Prove that XA+AR=XB+BR Ans:    Since the length of tangents from externa

How to subtract fractions involving negative numbers, Q. How to Subtract fr...

Q. How to Subtract fractions involving negative numbers? Ans. This is the same as adding them, but just remember the rule that two negatives on the same fraction cancel ou

Coefficient of determination, It refers to the ratio of the explained varia...

It refers to the ratio of the explained variation to the total variation and is utilized to measure the strength of the linear relationship. The stronger the linear relationship th