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3 years ago

What is the mean of the values in the dot plot? Enter your answer in the box.

Mathematics

1 answer:

e-lub [12.9K]3 years ago

5 0

Answer:

Mean = 33

Step-by-step explanation:

Mean = sum of scores /no of scores

Mean = 132/4
Mean = 33

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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

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7 0

1 year ago

Sam left a 15% tip on his bill at the restaurant. If the bill was $24, what was the tip?

dybincka [34]

Answer:

3.60 was the tip; 27.60 was what Sam paid total

Step-by-step explanation:

24 x 0.15 = 3.6

7 0

3 years ago

A football coach needs to divide 48 players into two groups. He wants the ratio of the players in group 1 to players in group 2

sergiy2304 [10]

Answer:

Step-by-step explanation: 344

7 0

4 years ago

The equation of the line with slope -3 that goes through the point (-9,-7) can be written in the form y=mx+b

katrin2010 [14]

Answer:y= -9x-25

Step-by-step explanation: Write the slope-intercept form of an equation of the line with slope -9 and passes through the point (-2, -7).

--------

Form:: y = mx + b

Solve for "b"::

-7 = -9*-2 + b

-7 = 18 + b

b = -25

-----

Equation:

y = -9x - 25

---------------

Cheers,

Stan H.

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point slope formula

y-y1=m(x-x1)

y+7= -9(x+2). Notice that we are subtracting a negative, so we have to add.

y+7=-9x-18

y= -9x-25

6 0

3 years ago

What is the solution set for x2+25=0

Masja [62]

Step-by-step explanation:

${x}^{2} + 25 = 0 \\ \therefore {x}^{2} = - 25 \\ \therefore {x} = \sqrt{ - 25} \\ \therefore {x} = \pm\sqrt{ - 1 \times 25} \\ \therefore {x} = \pm \sqrt{ 25} \times \sqrt{ - 1} \\ \therefore {x} = \pm5 \: i \\ \therefore {x} = \{ - 5i, \: \: 5i \} \: \\ is \: the \: solution \: set.$

7 0

3 years ago