Answer:
Step-by-step explanation:
Given that the bivariate distribution of X and Y is described below:
x 1 2
y
1 0.21 0.14 0.35
0 0.47 0.18 0.65
Pdf of Y is
Y 1 0
p 0.68 0.32
C) Pdf of X is
x 1 2
p 0.35 0.65
Mean of X = 
Var(x) = E(x^2)-Mean ^2 = 
C) Mean of Y = 1(0.68)+0 = 0.68
Var(y) = 1(0.68)-0.68^2
= 0.2176
Answer1: for every 5 kids there are 9 parents
2 part a: the for every 4 cookies for every 9 sodas that are sold
2 part b:the ratio of cookies to soda is 9:4
3.the ratio of pencils to erasers is 15:7
3: for every 15 pencils there are 7 erasers.
4.The first blank is 2eyes there Are4 legs
Step-by-step explanation:
Answer:
ur a sixth grader do the spiral review dabs
Step-by-step explanation:
Answer:
The biggest difference is between fruit juice and lemonade ($0.6).
Step-by-step explanation:
Giving the following information:
items:
fruit juice. $0.89
iced tea. $1.29
lemonade. $1.49
pretzel. $2.50
popcorn. $1.25
First, popcorn and pretzel are not beverages.
<u>Now, we need to find the differences in prices between each beverage and determine the greatest:</u>
Fruit juice to ice tea= 0.89 - $0.4
Fruit juice to lemonade= 0.89 - 1.49= $0.6
Ice tea to lemonade= 1.29 - 1.49= $0.2
The biggest difference is between fruit juice and lemonade ($0.6).