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Hatshy [7]
3 years ago
12

In drawing a histogram, which of the following suggestions should be followed?

Mathematics
1 answer:
ELEN [110]3 years ago
8 0

Answer:

B) The heights of the bear should equal the class frequency.

Step-by-step explanation:

In drawing a histogram, the heights of the bear should equal the class frequency. as in histogram height of bar represent the frequency density and  it´s area represent the frequency of class interval. Frequency distribution are represented by mean of rectangle. Earlier in the bar graph, width of bar does not represent any information, however, histogram´s bar width represent class interval.

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Line ab and cd (if presented in the picture) are straight lines. Find x (the pictures are not scaled)
erastova [34]

Answer:

x + 2x + 34 + 20 = 180

3 0
3 years ago
In psychology, there is a particular Mental Development Index (MDI) used in the study of infants. The scores on the MDI have app
ivann1987 [24]

Answer:

0.1587

Step-by-step explanation:

Here, mean=μ=100 and standard deviation=σ=16.

We have to find  P(average MDI scores of 64 children > 102)=P(xbar>102).

n=64

μxbar=μ=100

σxbar=σ/√n=16/√64=16/8=2

P(xbar>102)=P((xbar-μxbar)/σxbar>(102-100)/2)

P(xbar>102)=P(z>1)

P(xbar>102)=P(0<z<∞)-P(0<z<1)

P(xbar>102)=0.5-0.3413

P(xbar>102)=0.1587

Thus, the probability that the average is greater than 102 is 15.87%

4 0
3 years ago
A) 4
Shkiper50 [21]

Answer:

i think c

Step-by-step explanation:

8 0
3 years ago
Find mPRT.<br> P<br> 649U<br> 42°<br> R<br> s
Mkey [24]

Answer: 296 degrees

Step-by-step explanation:

Arc PRT is just the entire circumference - arc PT.

Since the 64 degree angle is a central angle, arc PT measures 64 degrees.

So arc PRT = 360 degree - 64 degree = 296 degrees.

3 0
2 years ago
5.1+2.3x=23.5..solve for x
erastovalidia [21]

Answer:

see beleow

Step-by-step explanation:

Let's solve your equation step-by-step.

5.1+2.3x=23.5

Step 1: Simplify both sides of the equation.

2.3x+5.1=23.5

Step 2: Subtract 5.1 from both sides.

2.3x+5.1−5.1=23.5−5.1

2.3x=18.4

Step 3: Divide both sides by 2.3.

2.3x

2.3

=

18.4

2.3

x=8

Answer:

x=8

8 0
3 years ago
Read 2 more answers
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