(0) how many sites are shown in this data set?
shield darter
number of sites
1
2
3
4
5
6
7
8
9
10
number of shield darter

answer:

75

step-by-step explanation:

on each dot you multiply the number it is on by how many dots are on the number and at the end you add them all up together.

blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500