Lydia recorded the grade-level and instrument of everyone in the middle school School of Rock below. Seventh Grade Students
Instrument # of Students
Guitar 7
Bass 13
Drums 2
Keyboard 7

ighth Grade Students
Instrument # of Students
Guitar 11
Bass 8
Drums 12
Keyboard 11

Based on these results, express the probability that an eighth grader chosen at random will play an instrument other than keyboard as a fraction in simplest form.

31/42

Step-by-step explanation:

there are 42 students in 8th grade

31 dont play keyboard so 31/42 = 73.8% chance

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers

answer is 144

step-by-step explanation: