If the variance of the data values in a population is 169, what is the standard deviation of the data values? A. 17 В. 15 С. 13 D. 11
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![If the variance of the data values in a population is 169, what is the standard
deviation of the data values?
A. 17
B. 15
C. 13
O D. 11](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6b9442d8-07dd-4646-bdf9-79810de5bdeb%2F1ef3a8bd-8f45-4dca-abc9-032ff93bf0c6%2Fr2yshai_processed.jpeg&w=3840&q=75)
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- can you please answer question 5The heights (in cm) of 60 people is given below. Classes Frequency, Cumulative Midpoint, fm (Height) Frequency m f (cm) 130 140 7 140 < 150 15 150 < 160 A 160 170 12 A. 140.5 B. 124.8 C. 136.6 7 D. 149.2 B 48 60 Σ 60 The variance (in cm²), correct to one decimal place is: 135 145 155 с 945 2175 4030 1980 fm² 127575 315375 624650 3267003. The average price of a new two-story townhouse is 1,600,000 pesos, find the maximum and minimum prices of the townhouse that a contractor will build to include the middle 70% of the market. Assume that the standard deviation of prices is 300,000 pesos and the variable is normally distributed.
- If a sore of normal distribution is 2.5, mean of distribution is 45 and standard deviation of normal distribution is 3 then the value of x for normal distribution is ________ A.) 7.5 B.) 47.5 C.) 37.5 D.) 67.5Question 10 The average and standard deviation of the weights of 350 Indian students are 55 kg and 3 kg respectively. And the average and standard deviation of weights of 450 German students are 60 kg and 4 kg respectively. a. Determine the combined mean weight of all those Indian and German students. b. Find the standard deviation of weight for the combined group of students.3.) A population has a mean of 300 and a variance of 80. If we get 160 samples from this population, what wili be the mean and standard deviation of the sampling distribution of sample mean? A.) Hg = 300 and og =0.53 B.) µg = 300 and og =0.71 C.) µg = 300 and og =6.32 D.) µg = 300 and og =80 %3D %3D
- 6) The accompany box-and-whisker plot summarizes test scores on a math test taken by 24 students LV 42 Q1 Q2 55 73 al What percentage of students scored above 84? b) How many test scores were below 73? L Q.3 84 HV 9418see pictures. Questions 1, 2 and 3 1) 2 answers and choose one (right-tailed, left-tailed, two-tailed) 2) z= 3) P-Value
- Question 7 Find the standard deviation of the data set: 15, 42, 53, 7, 9, 12,14, 28,47. 16.78A group of high school seniors took a scholastic aptitude test. The resulting math scores had a mean 470.5 with a standard deviation of 171.8, verbal scores had a mean 476 with a standard deviation of 187.6, and the correlation between verbal and math scores was r=0.786. Complete parts a through f below. a) What is the correlation? The correlation is (Round to three decimal places as needed.) b) Write the equation of the line of regression predicting verbal scores from math scores. (Round to three decimal places as needed.) c) In general, what would a negative residual mean in this context? O A. A negative residual means the student has a higher verbal score than the linear model would predict. O B. A negative residual means the student has the exact verbal score that the linear model would predict. OC. A negative residual means the student has a lower verbal score than the linear model would predict. d) A person tells you her math score was 611.Predict her verbal score. The student is…Question # 7 The frequency distribution presented describes the speed at which young people drove to get to take their classes to university. These young men were driving on a highway with a speed limit of 35 mi / h. Calculate the variance and standard deviation. Frequency. speed 42-45 25 46-49 16 50-53 8 54-57 4 58-61 2
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