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Luba_88 [7]
2 years ago
4

Quinn mailed four postcards that each cost $0.25, five letters that each cost $0.44, two large envelopes that each cost $0.80, a

nd one small package for $5.10. Which cost on the list of mailing fees on Quinn’s receipt would skew the mean? the cost of a postcard the cost of a letter the cost of a large envelope the cost of the small package
Mathematics
2 answers:
8_murik_8 [283]2 years ago
8 0

D. the cost of the small package

JulsSmile [24]2 years ago
5 0

Answer:

The cost of the small package

Step-by-step explanation:

Cost of 1 postcards = $0.25

Cost of 4 postcards =0.25 \times 4 =1

Cost of 1 letter = $0.44

Cost of 5 letters =0.44 \times 5 =2.2

Cost of 1 large envelope = $0.80

Cost of 2 large envelopes = 0.80 \times 2 =1.6

Cost of 1 small package =$5.10

Since the cost of small package is highest

So, It will increase the mean

So,  the cost of the small package will skew the mean

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A study was conducted to determine the percent of children that want to grow up work in the same career as a parent. In a sample
Irina-Kira [14]

Answer:

Step-by-step explanation:

From the information given,

Number of sample, n = 200

Probability of success, p = 43/100 = 0.43

q = 1 - p = 1 - 0.43

q = 0.57

For a confidence level of 95%, the corresponding z value is 1.96.

The formula for determining the error bound for the proportion is

z × √pq/n

= 1.96 ×√(0.43 × 0.57)/200

= 1.96 × 0.035 = 0.0686

The upper boundary of the population proportion is

0.43 + 0.0686 = 0.5

The lower boundary of the population proportion is

0.43 - 0.0686 = 0.4

The error in the solution is

phat = 0.43/200 = 0.00215

Also,

[-0.0043, 0.0086] is wrong

5 0
2 years ago
A spinner has four equally sized sectors that are numbered 2, 4, 4, and 5. The spinner is spun twice and the product of the outc
JulsSmile [24]

Answer:

Umm whats the question

Step-by-step explanation:

8 0
2 years ago
What is the circumference of this circle, in millimeters? use 22/7 for pi<br><br> r = 49
ICE Princess25 [194]
Circumference=2\pi r=2\times \dfrac{22}{7} \times 49 = \boxed{308 \text{ mm}}
7 0
2 years ago
Read 2 more answers
∠A and ∠C are right angles. m∠p = _???_ degrees.
iogann1982 [59]

Answer

Find out the  m∠p .

To prove

As in ΔDAB is a right triangle

Apply pythagorean theorem

Hypotenuse ² = Perpendicular ² + Base²

DB² = AB² + AD²

AB = 5 units

AD = 6 units

Put in the above formula

DB² = 5² + 6²

      = 25 + 36

     = 61

DB = \sqrt{61}\ units

           = 7.8 units (approx)

Now in  ΔDCB is a right triangle .

By using the trignometric identity .

cosp = \frac{Base}{Hypotenuse}

cosp = \frac{DC}{DB}

As DC = 4 units

DB = 7.8 units  (approx)

Put all the values in the trignometric identity .

cos p = \frac{4}{7.8}

\angle p = cos^{-1}(\frac{4}{7.8})

∠p = 59.15 ° (approx)

5 0
2 years ago
Read 2 more answers
1. Your furniture store sells two types of dining room tables. The first, type A, costs $265 and you make a $25 profit on each o
Gnom [1K]
Let x represent the number of type A table and y represent the number of type B tables.
Minimize: C = 265x + 100y
Subject to: x + y ≤ 40
25x + 13y ≥ 760
x ≥ 1, y ≥ 1

From, the graph the corner points are (20, 20), (39, 1), (30, 1)
For (20, 20): C = 265(20) + 100(20) = $7,300
For (39, 1): C = 265(39) + 100 = $10,435
For (30, 1): C = 265(30) + 100 = $8,050

Therefore, for minimum cost, 20 of type A and 20 of type B should be ordered.
5 0
2 years ago
Read 2 more answers
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