Answer:
2.5 is closer
Step-by-step explanation:
Had this on a worksheet for math.
Answer:
graph exponential function using transformations...f (x)=(12)X is reflected about the y-axis and compressed vertically by a factor of 15
It would be 6 and 1 cause:
6 × 1 = 6
6 + 1 = 7
Hope that helps :D
Answer:
a) 0.8413
b) 0.6293
Step-by-step explanation:
Data provided:
Mean tax paid = $2000
Standard deviation = $500
Sample size, n = 625
n=625
Now,
a) P( average tax paid on the sample forms is greater than $1980)
⇒ P(X > 1980)
or
⇒ 
or
⇒ 
or
⇒ P(Z > -1)
or
= 0.8413 (From standard normal table)
b) P(more than 60 of the sampled forms have a tax of greater than $3000)
given: p = 10% = 0.1
Now, by using CLT
mean = n × p
= 625 × 0.1
= 62.5
Standard deviation, s =
=
= 7.5
Thus,
P(X > 60)
= 
or
= P(Z > -0.33)
= 0.6293 (From standard normal table)