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Illusion [34]
3 years ago
11

Identify the percent of change as an increase or a decrease. 54 to 38 Increase Decrease Question 2 Find the percent of change. R

ound to the nearest tenth of a percent if necessary. %
Mathematics
2 answers:
Elena-2011 [213]3 years ago
8 0

Answer:

  decrease of 29.6%

Step-by-step explanation:

The percentage change can be calculated as ...

  percent change = ((new value)/(old value) -1) × 100%

  = (38/54 -1) × 100%

  = -0.2963 × 100%

  = -29.6%  . . . . . . . . . negative means decrease

54 to 38 is a decrease of 29.6%.

Bas_tet [7]3 years ago
6 0

Answer: 29.6% increase

Step-by-step explanation:

Percent of change is calculated by

(old number - new number) / old number x 100

54 - 38/54 ×100

= 16/54 × 100

=29.6%

I hope this helps.

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There has been much media coverage of the high cost of medicinal drugs in the United States. One concern is the large variation
umka21 [38]

Data for the question :

102.05 99.85 112.3 97.15 111.23 105.37 105.64 106.5 102.97 107.82 106.36 111.24 107.28 114.14 106.28 106.96 98.25 111.55 107.75 101.02 101.12 97.7 97.66 100.54 115.77 112.91 111.04 112.15 102.87 101.14 107.13 108.56 109.56 103.57 108.68 104.59 116.74 116.22 100.22 103.97 111.2 109.34 115.78 101.59 107.93 104.23 96.25 103.84 102.47 102.96 99.26 101.42 108.58 107.69 99.88 102.71 111.25 99.4 117.04 106.35 110.44 102.34 107.25 107.63 105.2 109.14 115.54 101.51 108.49 112.32 109.27 97.54 102.46 105.94 109.42 111.05 102.63 106.99 102.03 108.84 118.8 108.64 95.35 105.47 104.45 102.15 111.4 108.27 104.82 108.4 109.05 116.11 103.7 121.2 99.62 102.81 109.56 103.35 113.02 103.79

Answer:

Range = 25.35

Variance = 29.46

Standard deviation = 5.43

The variation in price of Prozac is high

Step-by-step explanation:

The range of the data :

Maximum - Minimum.

121.2 - 95.35 = 25.35

The variance, s :

s² = Σ(X - m²) / n - 1

Mean, m = Σx / n

X = individual data point

m = mean of data

n = sample size

Using a calculator of save time and ensure accuracy :

s² = 29.45522

The standard deviation, s

s = sqrt(variance)

s = sqrt(s²)

s = sqrt(29.45522)

s = 5.42726.

The range, variance and standard deviation, all measure the degree of variation in a dataset. The values of these statistical measure obtain for the price of 1 product across different pharmaceutical stores, suggests thatvthe variation in price is high;

With a range of about 25.35 and standard deviation of 5.43

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