The die. Find the standard deviation of the amount you might win rolling a die in Exercise 4.
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- What do yall think is the correct response?CCSS CCSS SMP4, 5.G.2, 8.SP.1, 8.SP.2 A fifth-grader's science fair project investigated the relationship between the length of a pendulum and the time it takes the pendulum to swing back and forth. The student made a pendulum by tying a heavy washer to a string and attaching the string to the top of a triangular frame, as shown in the diagram below. The length of the string could be varied. The table and scatterplot below show how long it took the pendulum to swing back and forth 10 times for various lengths of the string. (Several measurements were taken and averaged.) Length of String in Inches 1 2 3 4 5 6 7 8 9 10 二 12 13 14 Time of 10 Swings in Seconds. 2.61 2.97 3.04 3.41 3.96 4.13 4.22 4.5 4.64 5.13 5.32 5.56 5.62 C00 Time in seconds 7 6 5 T N 1 0 0 is 5 10 15Which statement is true about a normal distribution? O Knowing a data set is normal has no importance in the mathematical and scientific community. O Knowing a data set is normal is only important in producing nicely shaped graphs. O None of the answers listed O Knowing a data set is normal is important in the mathematical and scientific community. 77°F S rch
- find the standard deviation of this probability distribution. give your answer to 2 decimal places. x 0,1,2,3 p(x) 0.15,0.3,0.05,0.5Determine each statement is Type I error, Type II error, or no error. You reject the null hypothesis that the mean amount of soda in all cans of soda is at least 11 oz. The true mean is 11.07 oz. Suppose you fail to reject the null hypothesis that the mean lifetime of a battery is at least 50 hours. The true mean is 51.3 hours. Suppose you fail to reject the null hypothesis that the mean diameter of a bolt is at most 10 cm. The true mean is 10.02 cm.D. Tell whether the distribution has a small or large variance E. Compute the actual variance and standard deviation
- Font Paragraph %3. 9. 10 11 12 Battery Life For values of battery life between 7.5 and 10 hours, the density is 0.4. For all other values of battery life, the density is 0. 1. In the figure above, indicate the probability that a randomly selected iPhone 11 has a battery life between 9 and 10 hours. What is the value of this probability?For computing the variance this number is called as the value that is added or subtracted from the most probable value a. accuracy b. mistake c. error d. probable errorFind the variance of the probability distribution for the histogram shown.
- Scores on in biology tests are normally distributed with the mean of 78 in a standard deviation of 8.2 find the score that represents the 61st percentileBiologists studying horseshoe crabs want to estimate the percent of crabs in a certain area that are longer than 35 centimeters. The biologists will select a random sample of crabs to measure. Which of the following is the most appropriate method to use for such an estimate? A one-sample z-interval for a population proportion A A one-sample z-interval for a sample proportion B A two-sample z-interval for a population proportion C A two-sample z-interval for a difference between population proportions D A two-sample z-interval for a difference between sample proportions