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1 year ago

The box plots show the weights, in pounds, of the dogs in two different animal shelters.

Mathematics

2 answers:

leva [86]1 year ago

5 0

Answer:

The median weight for shelter A is greater than that for shelter B.

The median weight for shelter B is greater than that for shelter A.

The data for shelter A are a symmetric data set.

The data for shelter B are a symmetric data set.

The interquartile range of shelter A is greater than the interquartile range of shelter B.

pantera1 [17]1 year ago

3 0

Answer:

Step-by-step explanation:

sorry if I am wrong

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A bicycle is traveling at 20 feet per minute. What is the bicycle's speed expressed in inches per second?

Vikentia [17]

Answer:

4 inches per second

Step-by-step explanation:

Speed = distance/time

Given

Distance = 20 feet

12 inches = 1 foot

X inches = 20 feet

X = 20 x 12 = 240 inches

Time = 1 minute = 60 secs

Therefore

Speed = 240/60

= 4 inches per second

7 0

2 years ago

Peter, Gordon and Gavin share £36 in a ratio 2:1:1. How much money does each person get?

melamori03 [73]

Answer: let the common multiple be x..

according to given condition,

2x + x +x =36

4x = 9

Peter = 2x = 2 ×9 = £18

Gordon = Gavin = x = £9

Hope this helps have a amazing day bye!

8 0

1 year ago

Nora orders a bowl of Tom Yam soup at a restaurant which offers a 15% discount.

vlabodo [156]

6.90(15%) = $5.86
Soup cost with 15% discount is $5.86
Now add 10% to $5.86
5.86+.59= $6.45
Now add 7% to 6.45
6.90

4 0

2 years ago

The area, a, of an ellipse can be determined using the formula a = πxy, where x and y are half the lengths of the largest and sm

Ierofanga [76]

Answer:

We have the formula for determing the area of an ellipse : a = Pi * x * y, and we have to find the equivalent equation solved for y. In this formula x is half the length of the largest and y is half the length of the smallest diameter of the ellipse. Pi is approx. 3.14. Starting with: a = Pi * x * y ( we will divide both sides of the equation by: Pi * x ) => a /(Pi*x) = y. Answer: y = a / (Pi*x).

Plz mark brainliest if this helps!

4 0

2 years ago

Two opposing opinions were shown to a random sample of 1,744 US buyers of a particular political news app. The opinions, shown i

sweet-ann [11.9K]

Answer:

95% confidence interval for the proportion of all US buyers who would have chosen Opinion A is [0.28 , 0.32].

Step-by-step explanation:

We are given that Two opposing opinions were shown to a random sample of 1,744 US buyers of a particular political news app.

The outcomes were as follows: 30% chose Opinion A, 64% chose Opinion B, and 6% chose "Neutral."

Firstly, the Pivotal quantity for 95% confidence interval for the population proportion is given by;

P.Q. = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of US buyers who chose Opinion A = 0.30

n = sample of US buyers = 1,744

p = population proportion

Here for constructing 95% confidence interval we have used One-sample z test for proportions.

(a) SO, 95% confidence interval for the population proportion, p is ;

P(-1.96 < N(0,1) < 1.96) = 0.95 {As the critical value of z at 2.5% level

of significance are -1.96 & 1.96}

P(-1.96 < $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ < 1.96) = 0.95

P( $-1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ < ${\hat p-p}$ < $1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ) = 0.95

P( $\hat p-1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ < p < $\hat p+1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ) = 0.95

95% confidence interval for p = [ $\hat p-1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ , $\hat p+1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ]

= [ $0.30-1.96 \times {\sqrt{\frac{0.30(1-0.30)}{1,744} } }$ , $0.30+1.96 \times {\sqrt{\frac{0.30(1-0.30)}{1,744} } }$ ]

= [0.28 , 0.32]

Therefore, 95% confidence interval for the proportion of all US buyers who would have chosen Opinion A is [0.28 , 0.32].

(b) The number of buyers that chose Opinion A and the number of buyers that did not choose Opinion A are both greater than 10, that is;

Number of buyers that did chose Opinion A = $n \times p$

= $1,744 \times 0.30$ = 523.2

Number of buyers that did not chose Opinion A = $n \times (1-p)$

= $1,744 \times 0.70$ = 1220.8

Now, this inference condition should have been met because if these were not met then we were not able to use the normal distribution statistics above because binomial distribution can be converted to normal distribution only when $np$ and $n(1-p)$ both are greater than 10.

8 0

2 years ago