Finding Standard Deviation from a Frequency Distribution. In Exercises 37-40, find the standard deviation of sample data summarized in a frequency distribution table by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviations to these standard deviations obtained by using Formula 3-4 with the original list of data values: (Exercise 37) 11.1 years; (Exercise 38) 9.0 years; (Exercise 39) 13.4; (Exercise 40) 9.7 years. s = n [ ∑ ( f ⋅ x 2 ) ] − [ ∑ ( f ⋅ x ) ] 2 n ( n − 1 ) Standard deviation for frequency distribution 38. Age of Best Actor When Oscar Was Won Frequency 20-29 1 30-39 26 40-49 35 50-59 13 60-69 6 70-79 1
Finding Standard Deviation from a Frequency Distribution. In Exercises 37-40, find the standard deviation of sample data summarized in a frequency distribution table by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviations to these standard deviations obtained by using Formula 3-4 with the original list of data values: (Exercise 37) 11.1 years; (Exercise 38) 9.0 years; (Exercise 39) 13.4; (Exercise 40) 9.7 years. s = n [ ∑ ( f ⋅ x 2 ) ] − [ ∑ ( f ⋅ x ) ] 2 n ( n − 1 ) Standard deviation for frequency distribution 38. Age of Best Actor When Oscar Was Won Frequency 20-29 1 30-39 26 40-49 35 50-59 13 60-69 6 70-79 1
Solution Summary: The author calculates the standard deviation for the frequency distribution of age of best actor when Oscar was won.
Finding Standard Deviation from a Frequency Distribution. In Exercises 37-40, find the standard deviation of sample data summarized in a frequency distribution table by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviations to these standard deviations obtained by using Formula 3-4 with the original list of data values: (Exercise 37) 11.1 years; (Exercise 38) 9.0 years; (Exercise 39) 13.4; (Exercise 40) 9.7 years.
s
=
n
[
∑
(
f
⋅
x
2
)
]
−
[
∑
(
f
⋅
x
)
]
2
n
(
n
−
1
)
Standard deviation for frequency distribution
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Hypothesis Testing using Confidence Interval Approach; Author: BUM2413 Applied Statistics UMP;https://www.youtube.com/watch?v=Hq1l3e9pLyY;License: Standard YouTube License, CC-BY
Hypothesis Testing - Difference of Two Means - Student's -Distribution & Normal Distribution; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=UcZwyzwWU7o;License: Standard Youtube License