Policies Current Attempt in Progress During the dry month of August, one U. S. city has measurable rain on average only 4 days per month. Assume all months have 30 days. *(Round your answers to 1 decimal place.) **(Round the intermediate values to 4 decimal places. Round your answer to 4 decimal places.) (a) If the arrival of rainy days is Poisson distributed in this city during the month of August, what is the average number of days that will pass between measurable rain? * (b) What is the standard deviation? * (c) What is the probability during this month that there will be a period of less than 3 days between rain? **

it's d.

step-by-step explanation:

because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.

then you would get: -4x - 1y + 2x -6y combine like terms

and get: 2x -7y

hope my answer has you if not then i'm sorry.

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

the workers who do no drive has no reasonable reason to buy gasoline due to they don't have anything to use it for

6 meters

step-by-step explanation: