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julsineya [31]
4 years ago
6

A bus is traveling at a speed of 55 miles per hour. Which statement is correct?

Mathematics
2 answers:
KatRina [158]4 years ago
7 0
What statement ????????
____ [38]4 years ago
5 0

Answer:

yea what statement?????????

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The ages of the 32 recruits in police academy are normally distributed with a mean of 27 with a standard deviation of 2. What is
aksik [14]
Since it's a sample size, we use x, as the mean and s= standard deviation
            _
Given:  x =27, s = 2 and total sample = 32.
Probability that a recruit is at least 31 years old?

Let's calculate the Z score :
              _
         X - x              31 - 27
Z = ----------- → Z = -------- → Z = 2 (now look up in the Z score table,
           s                      2


Area (Z=2) =0.9772 , but Z ≥ 2  (at least) , then :
Area (Z≥2) = Area (Z≤ - 2)  = 0.0228

P(≥31)= 0.0228
7 0
3 years ago
Question A data set is summarized in the frequency table below. The data set contains a total of 50 data values. What is the mis
d1i1m1o1n [39]

Answer:

Missing frequency = 4

Step-by-step explanation:

Given:

Qty   Number

1             5

2            6

3            5

4            6

5            □

6            5

7             8

8             4

9             4

10           3

Total      50

Find:

Missing frequency

Computation:

Missing frequency = Total frequency - Counted

Missing frequency = 50 - 46

Missing frequency = 4

3 0
3 years ago
an employee is selected from a staff of 10 to super- vise a certain project by selecting a tag at random from a box containing 1
USPshnik [31]

Probability that the number drawn is less than 4 is given by 0.3

<h3>What is probability?</h3>

The likelihood of an event happening is gauged by probability.

The probability might be between 0 and 1, where 0 denotes an impossibility and 1 denotes a certainty.

The overall chance of every event in a sample space is 1.

Let random variable X represent the number of the drawn tag.

Since the simple space consists of 10 equally likely events

S = {1,2,3,4,5,6,7,8,9,10}

The formula for probability distribution is given by:

f(x) = { (1/10) for x = 1,2....10,    else 0 elsewhere

since, each number can equally likely occur, therefore

P(x) = 1/10 = 0.1

Probability that the number drawn is less than 4 is given by:

P(x<4) = P(1) + P(2) + P(3)

           = 0.1 + 0.1 + 0.1

           = 0.3

To know more about probability please visit:

brainly.com/question/16722133

#SPJ4

7 0
1 year ago
In the equation (x+2)^2+(y-3)^2=4, the radius of the circle is
PIT_PIT [208]

Answer:

center = (-2, 3)

radius = 2

Step-by-step explanation:

(x+2)^2   +  (y-3)^2 =  4

Use the formula:   (x - h)^2   +  (y - k)^2  = r^2

where (h, k) = center,   radius = r

mysticchacha dot com

...

(x - (-2))^2   +  (y - 3)^2 =  4 =  (2)^2

center = (-2, 3)

radius = 2

5 0
4 years ago
There were 75 customers in the store at 1 o'clock the store must be emptied by 5 how many customers must leave the store between
Hunter-Best [27]

first you got 2 steps and then you do 75+5+5=85 then you do 85+4+1=90 so the answer is 90


3 0
4 years ago
Read 2 more answers
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