Answer:
E(F)=200
V(F)=100
Step-by-step explanation:
(a) Let F be the amount he spends on falafel sandwiches over the next 400 days. Find E[F] and V(F).
If we analized his expenses in falafel sandwiches, we know he buys a $1 sandwich with aprobability of 50%.
If we call the random variable D the daily expense in falafel sandwiches, it is a Bernoulli variable with p=0.50.
If F is the sum of the daily expenses D during the 400 days, then we can say it is a binomial variable with p=0.5 and n=400.
Then we can calculate the expected value of F as:
The variance of F is then
Answer:yes it is because it is a number with radical
Step-by-step explanation:
Answer:
1 yard is 36 inches
3 yards is 108 inches
5 yards is 180 inches
<u>7 yards is 252 inches</u>
2 gallon is 32 cups
3 gallon is 48 cups
4 gallon is 64 cups
<u>5 gallon is 80 cups</u>
2 yard is 9 feets
4 yard is 12 feets
6 yard is 18 feets
<u>8 yard is 24 feets</u>
1 min is 60 seconds
3 min is 180 seconds
5 min is 300 seconds
7 min is 420 seconds
Step-by-step explanation:
first we have to convert
1 yard is 36 inches
1 gallon is 16 cups
1 yard is 3 feets
1 min is 60 seconds
(plz make me the brainlest)