Answer:
The probability that the sample proportion will be less than 0.05 is 0.80511.
Step-by-step explanation:
We are given that a courier service company wishes to estimate the proportion of people in various states that will use its services.
Suppose the true proportion is 0.04 and 349 are sampled.
<u><em>Let </em></u>
<u><em> = sample proportion</em></u>
The z score probability distribution for sample proportion is given by;
Z = 
~ N(0,1)
where, = sample proportion
n = sample size = 349
p = population proportion = 0.04
Now, the probability that the sample proportion will be less than 0.05 is given by = P( < 0.05)
P( < 0.05) = P( < 
) = P(Z < 0.86) = 0.80511
<em>The above probability is calculated by looking at the value of x = 0.86 from the z table which has an area of 0.80511.</em>
Hence, the probability that the sample proportion will be less than 0.05 is 0.80511.
Answer: I'm pretty sure its a or the first one ^w^
Step-by-step explanation:
Answer:
The values you need to know to create a box plot are:
lower quartile ⇒ 2nd
maximum value ⇒ 3rd
median ⇒ 5th
Step-by-step explanation:
Box plots is a type of graph that can help to organize data.
To graph a box plot the following data points must be calculated:
- The minimum value ⇒ least value
- The first quartile ⇒ lower quartile (the middle of the data before the median)
- The median ⇒ the middle value of the arranged data from smallest to greatest
- The third quartile ⇒ upper quartile (the middle of the data after the median)
- The maximum value ⇒ greatest value
After you make the box plot graph, you can display and compare distributions of data
Let us answer the question
The values you need to know to create a box plot are:
lower quartile ⇒ 2nd
maximum value ⇒ 3rd
median ⇒ 5th
It should be the same, 25%. Let's say Josh makes $4,000 a year, and Jeff makes $5,000. Jeff makes 25% more than Josh, and Josh makes 25% less than Jeff. Hope this helped.
Answer:
x = 4
Step-by-step explanation:
5[3(x + 4) - 2(1 - x)] - x - 25 = 14x + 65
Distribute by 3 and 2 inside the square bracket
5 [ 3x + 12 - 2 + 2x ] - x - 25 = 14x + 65
collect like terms inside the square bracket
5 (5x + 10) - x - 25 = 14x + 65 ← distribute the parenthesis by 5
25x + 50 - x - 25 = 14x + 65 ← collect like terms on left side
24x + 25 = 14x + 65 ( subtract 14x from both sides )
10x + 25 = 65 ( subtract 25 from both sides )
10x = 40 ( divide both sides by 10 )
x = 4
