Answer:
d. 0.0023
Step-by-step explanation:
Calculation for the probability of getting a sample average of 1.8 or less
Using this formula
z score =(X-mean)/Standard errror
Where,
Standard error =Standard deviation/√(n)
Let plug in the formula
P(Xbar<1.8)=P(Z<(1.8 hours per day -2.2 hours per day)/(2 hours /√(200))
P(Xbar<1.8)=P(Z<-0.4/(2/14.14))
=P(Z<-0.4/0.1414)
=P(Z<-2.83)
Now let find the Z score of P(Z<-2.83) using the z table
P=0.0023
Therefore the probability of getting a sample average of 1.8 or less is:0.0023
Answer:
16-25
Step-by-step explanation:
Answer:
100 - 12/n
Step-by-step explanation:
quotient means division so
12/n
and subtracted from means say x - 12/n so
100 - 12/n
If you're looking to evaluate it then it would be
4(25n - 3) / n
1. 25% of the new dogs found new home
2. 60% of the book Gabe read are fiction
Answer:
8 baseballs : 4 gloves
4 baseballs : 2 gloves
16 baseballs : 8 gloves
2 baseballs : 1 glove
10 baseballs : 5 gloves
Step-by-step explanation:
I think It's just asking to put some ratios that go with the one given.
