Pre-test Gen Math

The sum of two rational numbers is a rational number.

Find the sum of the observations if the mean is 143 and the number of observations is 8.

Which of the following is not a metric unit?

An irrational number has ________

Convert 3.5 meters to kilometers.

 What is the arithmetic mean of the observations 2, 4, 6?

What is the Median of the following data sample?2, 7, 4, 8, 9, 10, 6, 12, 13

The graph of the quadratic polynomial -x²+x+90 will open upwards.

 A polynomial is said to be linear, quadratic, cubic or biquadratic according to the degree of the polynomial.

What is the Median of the following data sample?2, 7, 7, 8, 5, 5, 2, 10, 7

What is the probability of selecting 8 blue balls from 10 green balls?

The product of a rational and an irrational number is rational number.

1. What is statistics?

Which of the following is the product of 2(x+1)?

Which of the following is the quotient of (4x²+8x) and 2x