The police headquarters considers Robert a normal of 2 times each hour to request his assistance. The likelihood that the station calls Robert in a period stretch is reliant just on the length of the time span and is autonomous of whether the division called Robert on any past time span. Superman goes out on the town with Sally and gets her from her place at 7:00pm. 1) What is the likelihood that their date has been interperated by 8:00pm? 2) If the occasions he is called is free starting with one hour then onto the next, what is the likelihood that Robert and Sally can complete their 4 hour date continuous? 3) What is the likelihood that the date is interfered with multiple times during the primary hour and Sally chooses to return to the workplace? 4) What is the likelihood that the date is interfered with precisely multiple times during the main hour given that it is intruded on less than multiple times in the principal hour?

Consider the accompanying theory test.

H0: ? 90

Ha: ? < 90

An example of 100 is utilized and the populace standard deviation is 12. Process the p-worth and express your decision for every one of the accompanying example results. Use

? = 0.01.

x = 91

A) Find the worth of the test measurement. (Round your response to two decimal spots.)

B) Find the p-esteem. (Round your response to four decimal spots.)

p-esteem =

Express your decision.

Try not to dismiss H0. There is adequate proof to reason that ? < 90.

..7..

Try not to dismiss H0. There is lacking proof to presume that ? < 90.

Reject H0. There is adequate proof to reason that ? < 90.

Reject H0. There is lacking proof to reason that ? < 90.

For the financial year 2007, a duty authority evaluated

1.81%

of individual government forms with pay of $100,000 or more. Assume this rate remains something similar for the current assessment year. What is the likelihood that two haphazardly chosen gets back with pay of $100,000 or more will be inspected?

The likelihood is

nothing.

(Round to six decimal places depending on the situation.)

The normal load of an elephant is 6.42 tons with a standard deviation of 1.07 tons. Utilize the Empirical Rule to address the accompanying inquiries.

1) Between what two qualities do 68% of elephants gauge? Among 5.35 and ______.

2) What is the likelihood that an arbitrarily chosen elephant will weight in any event 8.56 tons? ______%

3) What is the likelihood that an arbitrarily chosen elephant will weigh somewhere in the range of 3.21 and 9.63 tons? ________%