Ur cool if u answer this correctly with working

Add up all the frequencies to the get the total number of occurrences:

2 + 2 + 16 + 10 + 9 + 4 + x + 2 = x + 45

Then the probability corresponding to a given frequency is equal to (frequency)/(sum of frequencies). For example, the probability that a randomly chosen student has read 1 book in the marathon is 2/(x + 45); the probability of having read 4 books is 10/(x + 45); etc.

The mean is computed by multiplying each book count by their respective probability, and adding these all up. If the mean is 4.28, then

Simplifying the left side gives

Solve for x :

differnt varibles efect the range

step-by-step explanation:

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine