<u>Solution and Explanation:</u>
a) 51% of users of mobile phones use their phone at least once per hour,
It is a binomial distribution with n = 150, p = 0.51
mean = np = 150 multiply with 0.51 = 76.5
SD= sqrt(np(1-p) )= 6.1225
Since np and n(1-p) > 5, we can assume the distribution is normal.
B) please see the attached file.
c) It is a binomial distribution with n = 150, p = 0.02
mean = np = 150*0.02 = 3
SD= sqrt(np(1-p) )= 1.71464
Since np < 5, we cannot assume the distribution is normal.
Answer:
D. harms the society by interfering with the economy's natural process.
Explanation:
In order to get out of recession, the fed should reduce the tax rates, which would in return lead to higher disposable income of the consumers, and then there will be an increase in the demand.
On the other hand the sale of bonds would even further increase the recession, as there will be more cash crunch in the economy. A decrease in reserve ratio will be a long time taking solution, so it would not provide an immediate solution.
MCQ
But, if the fed interferes with the short run equilibrium in the hope of giving short run benefits, it will hamper the economy's natural process to attain a new equilibrium as discussed in the paragraph above. Hence, option D is the correct answer
Option A and C are incorrect, because, employment is not much affected with lowering of income tax. On, the other hand, inflation levels rise, when there is a cut in income tax, as it gives more currency in the economy, hence even C is incorrect.
Standard deviation = $300, expected return = $5,000 has the least amout of risk.
If preserving capital is important to you, there are many options to consider when it comes to bonds and bond mutual funds. Low risk means low return, but many people, such as retirees and those who need access to savings for specific short-term needs, want some return to sleep at night. I think it's okay to withhold.
With that in mind, here are the eight leading options in Rector, the low-risk segment of the fixed income market. They don't offer exceptional yields, but that's not the point.
Learn more about risk here:
brainly.com/question/25567167
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It attracts new customers and gets positive response.
Good marketing attracts more customers, more customers means more profit deeming it to be successful.
Answer:
nominal interest rate = 5%
real interest rate = 3%
Explanation:
given data
deposit previous = $2,000
deposit present = $2,100
CPI consumer price index rises = 200 to 204
to find out
nominal interest rate and real interest rate
solution
we get here first nominal interest rate that is express as
nominal interest rate = ( deposit present - deposit previous ) ÷ deposit previous × 100 ..........................1
put here value we get
nominal interest rate = 
× 100
nominal interest rate = 5%
and
now we get here inflation rate that is
inflation rate = ( CPI present - CPI previous ) ÷ CPI previous × 100 .............2
inflation rate = 
× 100
inflation rate = 2%
and
real interest rate will be as
real interest rate = nominal interest rate - inflation rate .................3
real interest rate = 5% - 2%
real interest rate = 3%
