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2 years ago

Pls help this is timing me!!!!!

Mathematics

1 answer:

Nostrana [21]2 years ago

5 0

Answer:

Step-by-step explanation:

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What is the mode of this data set 55 78 43 39 78 61 75 50 43 78

Rom4ik [11]

Mode means MOST. Which number is displayed the most?

39, 43, 43, 50, 55, 61, 75, 78, 78, 78

Answer: 78

Note: I placed the data set into numerical order because it will help you to easily find the mode and also the median (middle number).

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3 years ago

A circle is never a square?

Nookie1986 [14]

Answer:

never

Step-by-step explanation:

Since the area of the circle will always be a transcendental number and the area of a square has to be an integer, this can never happen in a finite number of steps. Therefore, you cannot square a circle

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3 years ago

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In a recent survey of favorite sodas 7 students chose coke. If these students represent 17.5% of the students surveyed, how many

katovenus [111]

Answer:

Step-by-step explanation:

7 = 17.5% × Y

STEP 2 7 =

17.5

100

× Y

Multiplying both sides by 100 and dividing both sides of the equation by 17.5 we will arrive at:

STEP 3 Y = 7 ×

100

17.5

STEP 4 Y = 7 × 100 ÷ 17.5

STEP 5 Y = 40

8 0

3 years ago

Which statement is true about the graphs of the two lines y = –6 and x = 1/6 ?

Novay_Z [31]

They both intersect eachother

4 0

3 years ago

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Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean diameter of 141 millimeters,

tiny-mole [99]

Answer:

Probability that the sample mean would be greater than 141.4 millimetres is 0.3594.

Step-by-step explanation:

We are given that Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean diameter of 141 millimetres, and a standard deviation of 7.

A random sample of 39 steel bolts is selected.

Let $\bar X$ = sample mean diameter

The z score probability distribution for sample mean is given by;

Z = $\frac{ \bar X-\mu}{\frac{\sigma}{\sqrt{n} } } }$ ~ N(0,1)

where, $\mu$ = population mean diameter = 141 millimetres

$\sigma$ = standard deviation = 7 millimetres

n = sample of steel bolts = 39

Now, Percentage the sample mean would be greater than 141.4 millimetres is given by = P( $\bar X$ > 141.4 millimetres)

P( $\bar X$ > 141.4) = P( $\frac{ \bar X-\mu}{\frac{\sigma}{\sqrt{n} } } }$ > $\frac{141.4-141}{\frac{7}{\sqrt{39} } } }$ ) = P(Z > 0.36) = 1 - P(Z $\leq$ 0.36)

= 1 - 0.6406 = 0.3594

The above probability is calculated by looking at the value of x = 0.36 in the z table which has an area of 0.6406.

8 0

3 years ago