A professor must randomly select 4 students to participate in a mock debate. There are 15 students in his class. In how many different ways can these students be selected, if the order of selection does not matter?

If the 26 english alphabets are taken such that A=1 B=2 C=3 ... Z=26 then find : (i) the mean and median of the numbers corresponding to the vowels.

Z - (y : 3 - 1); y=3 z=7

Larry runs at an average rate of 8 mi/h. He walks at an average rate of 3 mi/h. Write an equation in standard form to relate the times he could spend running and walking if he travels a distance of 15 mi.

Question The nine numbers Jagger and his accomplices identified as occurring more frequently than the others were 7, 8, 9, 17, 18, 19, 22, 28, and 29. Are these outcomes mutually exclusive if the wheel is spun once? Why or why not?

What is 950,000,000 in scientific notation?

You have 7 pair of jeans, 10 t-shirts, and 2 pair of shoes. How many total outfits are possible?

A survey was conducted among 400 students of age groups 7-12 years and 13-18 years to find their favorite music genre. The students had to select any one genre out of jazz, rock, and pop.

Describe and give an example of a compound event

At Davis middle school 372 students ride the bus, if this number is 60% of the school enrollment. Then how many students are enrolled in the school

Rachel is going to calculate the following expression: 3.32/1.66+18.4. She calculates the expression as it is written and then writes down the answer rounded to the nearest whole number.