An insurance company crashed four cars in succession at 5 miles per hour. The cost of repair for each of the four crashes was $411, $465, $400, $210 . Compute the range, sample variance, and sample standard deviation cost of repair. The range is $ 255 s? = dollars? (Round to the nearest whole number as needed.)

The ages( in years) and weights ( in pounds) of all running backs for a football team are listed. Find the coefficient of variation for each of the two data sets. Then compare the results. Cv weights= blank% CVages=blank%

A successful basketball player has a height of 6 feet 3 ​inches, or 191 cm. Based on statistics from a data​ set, his height converts to the z score of 2.31. How many standard deviations is his height above the​ mean?

A successful basketball player has a height of 6 feet 4 ​inches, or 193 cm. Based on statistics from a data​ set, his height converts to the z score of 2.66. How many standard deviations is his height above the​ mean?

The histogram displays the number of 2008 births among U.S. women ages 10 to 50 . Each bin represents an interval of two years, and the height of each bin represents the frequency with which the data fall within that interval. A histogram for the number of births by mother’s age for 2008. Height of 62 for ages 14 to 16, height of 202 for ages 16 to 18, height of 369 for ages 18 to 20, height of 415 for ages 20 to 22, height of 441 for ages 22 to 24, height of 470 for ages 24 to 26, height of 487 for ages 26 to 28, height of 460 for ages 28 to 30, height of 403 for ages 30 to 32, height of 326 for ages 32 to 34, height of 252 for ages 34 to 36, height of 177 for ages 36 to 38, height of 99 for ages 38 to 40, height of 46 for ages 40 to 42, height of 17 for ages 42 to 44, and height of 4 for ages 44 to 46. Use the provided histogram to answer questions about the number of births for each age group. How many births occurred among women over the age of 38 ? number of births:What percentage…

= 19 inches. Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a friend tells you that the average length of trout caught in Pyramid Lake is u However, a survey reported that of a random sample of 51 fish caught, the mean length was x 18.6 inches, with estimated standard deviation s = 3.3 inches. Do these data indicate that the average length of a trout caught in Pyramid Lake is less than μ = 19 inches? Use a = 0.05. = (a) What is the level of significance? State the null and alternate hypotheses. O Ho: μ = 19 in; H₁: μ ‡ 19 in Ho: μ> 19 in; H₁: μ = 19 in O Ho: μ 19 in O Ho: μ = 19 in; H₁: μ 0.010 O 0.0010 < P-value < 0.010 O 0.250 < P-value < 0.0010 0.125 < P-value < 0.250 O P-value < 0.125 Sketch the sampling distribution and show the area corresponding to the P-value.

Question 2 Find the mean and median of the following data set. Round your answers to the nearest hundredth as needed. 5 Mean: Median: > 2 7 6 3 3 5 7 9

In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores fall between 71 and 79. What are the mean and standard deviation for this data?

Given that the mean and standard deviation are $24 and $3. Calculate the variance.

In some reports, the mean and coefficient of variation are given. For instance, one report gives the average number of physician visits by males per year. The average reported is 2.6, and the reported coefficient of variation is 2.3%. Use this information to determine the standard deviation of the annual number of visits to physicians made by males. (Round your answer to three decimal places.)