Answer:
Ellen's survey is more representative
Answer:
47
Step-by-step explanation:
Answer:
1 over 400
Step-by-step explanation:
I think it is 3 over 1200. I think you can divide the 1200 by 3.
Answer:
0.4459
Step-by-step explanation:
Let the random age variable, X = 4.5; mean,∪ = 4.8; standard deviation, α = 2.2
By comparing P ( 0≤ Z ≤ 4,8)
P(Z ≤ X - ∪/α) = P(Z ≤ 4.5 - 4.8/2.2) = P(Z ≤ - 0.136)
Using the table: P(0≤ Z ≤ 1) = 0.0541
P(Z > 1) = (0.5 - 0.0541) = 0.4459
∴ P(Z > 4.5) = 0.4459
Answer:
d.81
Step-by-step explanation:
81 can be represented by a 9x9 square grid. The rest of the numbers would be represented on rectangular grids.
