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iogann1982 [59]
1 year ago
11

How can I Estimate the mean length. How can I select the modal class ?

Mathematics
1 answer:
Alekssandra [29.7K]1 year ago
3 0

Answer:

To estimate the mean length.

From the table lengths and its corresponding frequency are given

we know that,

The mean formula is defined as the sum of the observations divided by the total number of observations.

The formula to calculate the mean of grouped data. The formula is,

m=\frac{\sum^fx_i}{\sum^f}

we get, Midpoint of the intervals are,

0.95, 2.95, 4.95, 6.95, 8.95, 10.95

Mean is,

=\frac{0.95\times3+2.95\times33+4.95\times62+6.95\times49+8.95\times36+10.95\times7}{3+33+62+49+36+7}

we get,

=\frac{1146.5}{190}=6.034

Answer is: 6.034

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Fofino [41]
Well 5x7=35 so I would think 35 feet
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2 years ago
Factors of 42 <br> I need to know what factors make 42
vodomira [7]

<em>1 x 42</em>

<em>2 x 21</em>

<em>3 x 14</em>

<em>6 x 7</em>

Step-by-step explanation:

We need to find factors of 42.

Factors: <em>Two numbers when multiplied if give you the required number then those 2 numbers are factors o that number.</em>

So, Factors of 42 are:

<em>1 x 42</em>

<em>2 x 21</em>

<em>3 x 14</em>

<em>6 x 7</em>

Only these numbers when multiplied will give 42.

So, All these numbers are factors of 42

Keywords: factors of numbers

Learn more about factors of numbers at:

  • brainly.com/question/1414350
  • brainly.com/question/1464739

#learnwithBrainly

3 0
3 years ago
18 less than the product of 42 and x write as an algebraic expression
Afina-wow [57]
Less than = subtraction = -
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(42 + x) - 18
4 0
3 years ago
What is the experimental probability that both coins land on the same side on Isidro’s next toss
Musya8 [376]

Answer:

1/2, or 0.5

Step-by-step explanation:

There are 4 ways that 2 coins can fall...

Both heads (this satisfies our situation)

1st coin heads, 2nd coin tails

1st coin tails, 2nd coin heads

Both tails (this satisfies our situation)

We have 2 out of 4 ways to satisfy this situation, so our experimental probability is

P = 2/4 which reduces to

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3 0
3 years ago
PLZ HELP ANSWER AND EXPLAIN. (photo) #8
evablogger [386]
The picture shown is a unfolded rectangular prism.

The formula to find the surface area of a rectangular prism is:

A = 2(WL+HL+HW)

(W = width, L = Length, H= Height)

So we would need to determine the Height, Length, and Width first, and then plug them into the formula and solve for the area.

In this case:
The height is: 4 cm 
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The width is: 6.4 cm

Now that we have determined the height, length, and width, we simply plug them into the formula I showed earlier. 

In this case the answer would be 269.6.

D. 269.6
8 0
3 years ago
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