The answers are (-3,-12), (-2,-10), (5,4)
Answer:
35.9
Step-by-step explanation:
The "work" is entering the numbers into a suitable probability calculator. A TI-84 calculator will tell you ...
invNorm(0.41,37.6,7.6) = 35.87065818
A score of about 35.9 separates the bottom 41% from the top 59%.
Sent a picture of the solution to the problem (s).
#5: cost: y
Number of beads: x
y=0.48*x
So for 4 beads: 1.92
for 5 beads: 2.4
#6: the x th term in the sequence is y
y=17-2x
The 10th term is -3
The appropriate formula is
... z = (x - μ)/σ
Solving for x gives
... x = μ + z·σ
Substituting the given values lets you find x:
... x = 50 + 1.5·10
... x = 65