Answer:
0.8224
Step-by-step explanation:
Data
- standard deviation, sd: $10
- first value of interest, x1: $63
- second value of interest, x2: $90
z-score for x1:
z1 = (x1 - mean)/sd = (63 - 76)/10 = -1.3
z-score for x2:
z2 = (x2 - mean)/sd = (90 - 76)/10 = 1.4
The proportion of wrist watch prices are between $63 and $90 is:
P(z1 < z < z2) = P(z < 1.4) - P(z < -1.3)
P(z < 1.4) = 0.9192 (see first picture attached)
P(z < -1.3) = 0.0968 (see second picture attached)
P(z1 < z < z2) = 0.9192 - 0.0968 = 0.8224
Answer:
y = 2; distance is 4 units
Step-by-step explanation:
Line y = 2
Because the y- coordinate is the same, only horizontal movement from -1 to -5..
Which is 4 units
Hello there!
So, as we see here, we can see that they start out with 20,000 members. 25% of 20,000 would be 5,000 members.
So, every year, they lose 25% which is 5,000 members of they team. But then they gain 10,000 more.
So, practically, they get 5,000 every year even though they get 25% off.
5,000 would be the answer.
20 raise the power 7
Step-by-step explanation:
Which clearly means 20 × itself 7 times
