Answer:
26
Step-by-step explanation:
22, 24, 26, 28, 28/ 31, 33, 34, 36, 40
Put them in order from least to greatest and find the median (middle) Everything to the right of the dash is the lower quartile, everything to the left is the higher quartile. Then find the median (middle) of the lower quartile.
Answer:
Its 53 because 1=1 and 2=2
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that X and Y are independent random variables with the following distributions:
x -1 10 1 2 Total
p 0.3 0.1 0.5 0.1 1
xp -0.3 1 0.5 0.2 1.4
x^2p 0.3 10 0.5 0.4 11.2
Mean of X = 1.4
Var(x) = 11.2-1.4^2 = 9.24
y 2 3 5
p 0.6 0.3 0.1 1
yp 1.2 0.9 0.5 0 2.6
y^2p 2.4 2.7 2.5 0 7.6
Mean of Y = 2.6
Var(Y) = 11.2-1.4^2 = 0.84
3) W=3+2x
Mean of w =3+2*Mean of x = 7.2
Var (w) = 0+2^2 Var(x)= 36.96
Answer:
12.5r
Step-by-step explanation:
You just add all the numbers together and then add the r at the end it’s pretty easy when you know that
Answer:
4 pizza and 4 videos
Step-by-step explanation:
let p represent the number of pizza
let v represent the number of videos
Total income = $40
Price of pizza = $5
Price of video = $4
Price of pizza and video = $5 + $4
= $9
Total amount spent on pizza = (5/9)* 40
= 200/9 = $22.22
Total number of pizza bought = 22.22/5 = 4.4
= 4 pizza(approximately)
Total amount spent on video = (4/9)*40 = 160/9
= 17.77
Total number of videos = 17.77/4 = 4.44 = 4 videos (approximately)
