Answer:
22.97
Step-by-step explanation:
Given that the average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $138.00.
Let x be the average cost an IRS Form 1040 tax filing at Thetis Tax Service
is given
From std normal distribution table we find 77th percentile z value.
z=0.74
Corresponding X value = 155
i.e.
where s is the std deviation
Simplify to get
Std deviation = 
Answer: 57.14%
Step-by-step explanation:
Because it’s not 4.76% or 10%, and 210% seems drastic. Lemme know if it’s right though.
Answer:
26.5454545455
Step-by-step explanation:
Answer:
the sea line
I am guessing
Step-by-step explanation: