Solve the following problems the most fast you can ( I have 30 minutes to submit them)

Question 1 Video https://www.youtube.com/watch?v=1S7GFmY_TVc

A sample of people were asked how many pets they have. The bar graph below shows the number of adults who indicated each number of pets. 14 Number of Adults o 0 1 2 3 4 5 Number of Pets How many adults were questioned? What percentage of the adults questioned had 2 pets? Round your answer to the nearest tenth of a percent. 4.2 X|% During one shift, the express lane clerk recorded how many times customers violated the "10 items or less" rule for his lane. In particular, he recorded how many items over the limit each violator placed on the conveyor belt. This data is summarized in the histogram below. NOTE: The last class actually represents "7 or more items,\" not just 7 items. 12 10 Frequency N AN O oo 05 15 25 35 45 55 65 7.5 # items over 10 What is the frequency of times the limit was exceeded by at most 2 items? Answer: times Here is a data set summarized as a stem-and-leaf plot: Stem | leaf | | 5 [0001456777888899 | 6 04567 0 How many data values are in this data set? What is the minimum value in the last class? o What is the minimum value in the entire sample? o How many of the original values are greater than 50? A sample was done, collecting the data below. Calculate the standard deviation, to one decimal place. For the following exercises, use the following twenty data values to answer the questions without technology: 1,4,6,7,12, 15, 21, 25, 29, 30, 31, 33, 39, 43, 44, 45, 51, 55, 60, 63 a) What data value is at the 10th percentile? b) What data value is at the 55th percentile? c) What data value is at the 90th percentile? d) What data value is at the 30th percentile? Run a regression analysis on the following data set, where y is the final grade in a math class and x is the average number of hours the student spent working on math each week. hours/week | Grade X y State the regression equation y = m - + b, with constants accurate to two decimal places. What is the predicted value for the final grade when a student spends an average of 10 hours each week on math? Grade = Round to 1 decimal place