All categories

3 years ago

Find the Mean. (Round to the nearest tenths place)

Mathematics

2 answers:

Montano1993 [528]3 years ago

8 0

Answer:

55.6

Step-by-step explanation:

The mean is found by adding all the numbers together, and dividing by the amount of numbers there are. Note you must round to the tenths place.

(50 + 52 + 52 + 55 + 56 + 56 + 56 + 58 + 58 + 59 + 60)/11

First, combine and add all terms within the parenthesis, and then divide:

(612)/11 = 55.63... , or 55.6 (rounded to the nearest tenth place).

55.6 is your answer.

zhenek [66]3 years ago

6 0

55.6 i don’t rlly feel like explaining but just go wif it

You might be interested in

sally works in a factory that produces 1,000 televisions each day. when 40 televisions were sampled, it was found that 6 were de

Lostsunrise [7]

An estimate of the number of defective televisions that are made each day is 150.

<h3>How many defective televisions are made each day?</h3>

The first step is to determine the ratio of the televisions sampled to the total number of televisions produced each day.

1000 / 40 = 25

The second step is to multiply, 25 by 6: 25 x 6 = 150

To learn more about multiplication, please check: brainly.com/question/13814687

#SPJ1

8 0

2 years ago

a game contains 3 bags of green chips, 2 bags of red chips, and 5 bags of yellow chips. There are 25 green chips in a bag and 30

asambeis [7]

25+30=55 is your answer

3 0

3 years ago

A lab animal may eat any one of three foods each day. Laboratory records show that if the animal chooses one food on one trial,

Tresset [83]

Answer:

The probability that it will choose food #2 on the second trial after the initial trial = 0.3125

Step-by-step explanation:

Given - A lab animal may eat any one of three foods each day. Laboratory records show that if the animal chooses one food on one trial, it will choose the same food on the next trial with a probability of 50%, and it will choose the other foods on the next trial with equal probabilities of 25%.

To find - If the animal chooses food #1 on an initial trial, what is the probability that it will choose food #2 on the second trial after the initial trial?

Proof -

By the given information, we get the stohastic matrix

$H = \left[\begin{array}{ccc}0.5&0.25&0.25\\0.25&0.5&0.25\\0.25&0.25&0.5\end{array}\right]$

As we know that,

The matrix is a Markov chain $x_{k+1} = Hx_{k}$

Let

The initial state vector be

$x_{0} = \left[\begin{array}{ccc}1\\0\\0\end{array}\right]$

we choose this initial vector because given that If the animal chooses food #1 on an initial trial.

Now,

$x_{1} = Hx_{0} \\ = \left[\begin{array}{ccc}0.5&0.25&0.25\\0.25&0.5&0.25\\0.25&0.25&0.5\end{array}\right]\left[\begin{array}{ccc}1\\0\\0\end{array}\right] \\= \left[\begin{array}{ccc}0.5\\0.25\\0.25\end{array}\right]$

∴ we get

$x_{1} = \left[\begin{array}{ccc}0.5\\0.25\\0.25\end{array}\right]$

Now,

$x_{2} = Hx_{1} \\ = \left[\begin{array}{ccc}0.5&0.25&0.25\\0.25&0.5&0.25\\0.25&0.25&0.5\end{array}\right]\left[\begin{array}{ccc}0.5\\0.25\\0.25\end{array}\right] \\= \left[\begin{array}{ccc}0.25+0.0625+0.0625\\0.125+0.125+0.0625\\0.125+0.0625+0.125\end{array}\right]\\= \left[\begin{array}{ccc}0.375\\0.3125\\0.3125\end{array}\right]$

∴ we get

$x_{2} = \left[\begin{array}{ccc}0.375\\0.3125\\0.3125\end{array}\right]$

∴ we get

The probability that it will choose food #2 on the second trial after the initial trial = 0.3125

4 0

3 years ago

What is the sum of the coefficients of the expression 3x^4+5x^2+x?

IrinaK [193]

Answer:

The sum of coefficients = 9

Step-by-step explanation:

The given expression is,

3x⁴ + 5x² + x

There are three terms in the given expression. All the terms contains variable x.

<u>To find the coefficients of each terms </u>

term coefficients

3x⁴ 3

5x² 5

x 1

<u>To find the sum of coefficients </u>

sum = 3 + 5 + 1 = 9

Therefore the sum of coefficients = 9

7 0

3 years ago

Read 2 more answers

Help me please :(:(:(:):):):):):

fiasKO [112]

Answer:

c) -6

Step-by-step explanation:

50 + 90 + (x+46) = 180 (angle sum property)

186 + x = 180

x = 180 - 186 = -6

I hope im right!!

3 0

3 years ago