What is the area of the triangle to the nearest tenth?

WHICH IS A TRUE STATEMENT BASED ON THE DOT PLOTS BELOW 10 POINTS

Nata [24]

Answer:

C. Set B has the greater range.

Step-by-step explanation:

We can start out with listing out each set of data in a way that makes it easier to work with.

Set A:

20,20,30,30,40,40,40,40,40,50,50,60,60,60

Set B:

10,10,20,20,20,30,30,30,30,40,50,50,60

We can start by trying to eliminate answer options; starting with D.

To get the mean of a set of data, we need to add all numbers in the data set and then divide by the number of dots on the plot.

For Set B: 10+10+20+20+20+20+30+30+30+30+40+50+50+60=420 then divide by number of dots (14) 420/14=30 The mean of Set B is equal to 30.

Solve the mean for Set A to compare. The mean is 41. D is not true so we can eliminate this answer choice.

We can look at the median of both sets so that we can eliminate answer choice B. The median is the middle most point in the set of data.

Set A median: 40

Set B median: 30

We can eliminate B because it does not have the greater median.

On to option C: range.

To find the range of each data set, we subtract the smallest number from the biggest number.

Set A: 60-20=40

Set B: 60-10= 50

Set B does in fact have a greater range than Set A. Answer choice C is the correct option.

6 0

2 years ago

A Janine tem hoje 4 anos e daqui a 8 anos sua idade será 1 terço da idade de seu pai.

goblinko [34]

12= 1/3*x 12= x/3 36=x Hoje ela tem 4 anos, daqui a 8 anos terá 12 anos, que é um terço da idade de seu pai, 12*3=36

6 0

1 year ago

The longer diagonal of a right trapezoid is 13 cm. The longer base is 12 cm. Find the area of the trapezoid if the shorter base

topjm [15]

Draw a diagram of a right trapezoid .
B ---------------- C 
.| ............ ............ * 
.| ............ ............ ..... * 
A --------------- -------------- D 
Longer diagnal BD = 13cm 
Longer base AD = 12cm 
Shorter base BC = 8cm 
Angle A is 90° , so △BAD is a right triangle . 
AB^2 + AD^2 = BD^2 
AB^2 + 12^2 = 13^2 
AB^2 + 144 = 169 
AB^2 = 25 
AB = 5 
So the area of trapezoid ABCD is (12+8)*5/2 = 50 [cm^2] .

5 0

2 years ago

2.82 For married couples living in a certain suburb, the probability that the husband will vote on a bond referendum is 0.21, th

skad [1K]

Answer:

a) 0.3400

b) 0.7143

c) 0.0833

Step-by-step explanation:

Let H be the event that the husband will vote on the bond referendum, and W be the event that the wife will vote on the bond referendum.

P(H) = 0.21

P(W) = 0.28