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andreyandreev [35.5K]
3 years ago
13

2. The number of phones (landline and cell) owned by the members of each of nine families is 3, 5, 6, 6, 6,

Mathematics
1 answer:
kap26 [50]3 years ago
8 0

Answer:

mean = 6

Step-by-step explanation:

hope this help you !! ;))

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dezoksy [38]

Answer:

The shape has 6 angles and 6 sides

Step-by-step explanation:

therefore it is a hexigon as hexigon is  a polygon of six angles and six sides.

3 0
2 years ago
Read 2 more answers
The local public transport authority is conducting research into commuter behaviour. A previous census indicated that the mean c
kondor19780726 [428]

Answer:

H_0:\mu  = 45 and H_a:\mu  < 45

T = 34.88

The null hypothesis is not rejected

Step-by-step explanation:

Given

Random sample of 50 commuter times

Solving (a): The null and alternate hypothesis

From the question, a previous census shows that:

\mu =45 and \sigma= 9.1

This is the null hypothesis i.e.

H_0:\mu  = 45

Reading further, a new test was to show whether the average has decreased.

This is the alternate hypothesis, and it is represented as:

H_a:\mu  < 45

Solving (b) and (c): The test statistic (T).

This is calculated using:

T = \frac{\mu}{\sigma/\sqrt n}

In this case:

n = 50   \mu =45 and \sigma= 9.1

So:

T = \frac{45}{9.1/\sqrt{50}}

T = \frac{45}{9.1/7.07}

T = \frac{45}{1.29}

T = 34.88

Solving (c): Accept or reject null hypothesis

\alpha = 0.05

First calculate the degrees of freedom (df)

df = n - 1 = 50 - 1

d f = 49

From the t distribution table,

At: d f = 49,  \alpha = 0.05 and T = 34.88

the t score is:

p = 1.676

p > 0.05

<em>So, the null hypothesis is not rejected</em>

7 0
3 years ago
1.) (X+9)(x+3)
hodyreva [135]
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3 years ago
What is the verbal expression for 6f^2+5f
pychu [463]

Answer:

f = 5/6 = 0.833  or f = 0

Step-by-step explanation:

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2 years ago
For each model below write the portion of the grid that is shaded as a percent and as a fraction. EXPLAIN.
Rudik [331]

Answer:

Just find the area of each shape .fir the first triangle it will be (0.5 x6 x6) so the answer is 18 . So the shaded part is 18 out of 100 or 18% . And so on for the trapezoid and the combined figure of square and triangle together

Step-by-step explanation:

5 0
3 years ago
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