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3 years ago

6th work. What measure of Central tendency is calculated by adding all the values and diving the sum by the number of values

Mathematics

1 answer:

REY [17]3 years ago

6 0

Mean because I think

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Emily is saving money for her vacation. She started out with $23.00, and earns $8.00 each day. How much money will she have on d

Arisa [49]

So what you have to do is multiply 8 times 10 and then that is 80 so add 80 to the 23.00 hope this helped

7 0

3 years ago

Read 2 more answers

In a metal fabrication process, metal rods are produced to a specified target length of 15 feet. Suppose that the lengths are n

Leto [7]

Answer:

95% Confidence interval: (14.4537 ,15.1463)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 15 feet

Sample mean, $\bar{x}$ = 14.8 feet

Sample size, n = 16

Alpha, α = 0.05

Sample standard deviation, σ = 0.65 feet

Degree of freedom = n - 1 = 15

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 15 and}~\alpha_{0.05} = \pm 2.1314$

$14.8 \pm 2.1314(\dfrac{0.65}{\sqrt{16}} ) \\\\= 14.8 \pm 0.3463 = (14.4537 ,15.1463)$

is the required confidence interval for the true mean length of rods.

3 0

3 years ago

Read 2 more answers

How do l do this I’m so confused

Anika [276]

Answer:

$967.6cm^{2} (1 d.p)$

Step-by-step explanation:

Total Surface Area of Cylinder = $2\pi rh+2\pi r^{2}$

Given from the question, r = 7 cm and h = 15cm

Lets Substitute r and h into the formula to find the Total Surface Area of the cylinder.

Total Surface Area of Cylinder = $2\pi (7)(15)+2\pi (7)^{2} \\=210\pi +98\pi \\=308\pi cm^{2} \\=967.6cm^{2} (1 d.p)$

7 0

1 year ago

If 18 inches is 1 1/2feet how many feet long is a 36 inches board ,a 72 inches board?

Juli2301 [7.4K]

36 inches=2 feet 72 inches= 4 feet

5 0

2 years ago

Which is smaller 1/2 or 3/8

ludmilkaskok [199]

Answer:

3/8 is smaller

Step-by-step explanation:

because it not have of 8 as for 1/2 is half so your answer is 3/8

7 0

3 years ago