Twelve students in a class average 70% on a certain test. eighteen others average 80%. what is the overall average of the thirty students as a percent

Which of these R-values represents the weakest correlation? A) 0.6 B) 0.5 C) 0.4 D) 0.3

What are two straight lines that cross each other at a right angle? A. Curved B. Parallel C. Broken D. Perpendicular

What is the length of BE? 14 units 17 units 27 units 34 units

Six friends share 4/5 of a pizza equally. What fraction of the pizza will each friend get

The football team had 72 students try out for the team, which has 3 times as many students who tried out for the volleyball team. How many students tried out for the volleyball team?

A trapezoid with a height of 8 ft has bases of length 14 ft and 12 ft. Find the area of the trapezoid.

If you roll a standard number cube 65 times, how many times do you expect the cube to show an even number? Round the measure to the nearest whole number

Sound waves are emitted from a fishing boat. Some of the sound waves are reflected by fish and detected back at the boat. The shortest time between the sound waves being emitted and detected is 0.26 s. The speed of sound in water is 1500 m/s.

To make orange paint, Pedro mixes red paint and yellow paint in the ratio 3:2. If he uses 8.5 gallons of yellow paint, how many gallons of red paint does he use?

In which of these examples, binomial distribution can be used? a) Finding the best month to launch a new product b) Accurately predicting who will be promoted at work c) Predicting the score of a cricket match d) Probability of getting a certain