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Business Math Homework 22
TI-84 Plus
1. Press the “STAT” button, then select “1: Edit.” This menu allows you to enter each value in the data set. The TI-84 allows you to enter up to six different lists of data sets. 2. Type each value of the data set into the “L1” column and press “Enter” after each value. Your values will display in list format in column L1. 3. Press the “STAT” button again, then use the arrow key to highlight “CALC” at the top of your screen. 4. Select “1: 1-Var Stats” and press “Enter.” You must now select the list of values you entered in step #2. 5. Press the “2nd” button, then press “1” to select the L1 column. If you created multiple lists and want to select a different list, press the number that corresponds with that column. For example, if you want standard deviation for the values you entered in the L4 column, press the “2nd” button, then press “4.”[1] 6. Press “Enter.” The TI-84 will now display standard deviation calculations for the set of values. 7. Find the standard deviation value next to either “Sx” or “sigma x,” the latter of which is located directly below “Sx.” Sx is the sample standard deviation, whereas sigma x is the population standard deviation. FINDING THE MEDIAN OF A GROUP OF VALUES Step 1. Orderly arrange values from the smallest to the largest. Step 2. Find the middle value. a. Odd number of values: Median is the middle value. You find this by first dividing the total number of numbers by 2. The next-higher number is the median. b. Even number of values: Median is the average of the two middle values. Find the median: 47, 80, 61, 81, 27, 65, 103 Median  Calculate the mean: $1,008, $76.34, $41.66, $589.79 (Round your answer to the nearest hundredth.) Mean  Use the following table:
A = 4, B = 3, C = 2, D = 1, F = 0 Calculate the grade-point average. (Round your answer to 2 decimal places.)  Use the following table:
Find the weighted mean. (Round your answer to the nearest tenth.)  Homework Chapter 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 Need A Tutor? Need Homework Help?
Use
the following table.
Calculate the price relative. (Round your answer to the nearest tenth percent.)  45,000 / 31,000 = 1.451612903 x 100 = 145.161% (round to 145.2) How many degrees on a circle graph would each be given from the following? (Round your answers to the nearest tenth.)
 Jim Smith, a marketing student, observed how much each customer spent in a local convenience store.
a. Based on the above results, prepare a frequency distribution.
 Angie’s Bakery bakes bagels. The June production is given below.
Find the weighted mean. (Round answer to the nearest whole number.)  Despite tuition skyrocketing, a college education is still valuable. Recent calculations by the Federal Reserve Bank in San Francisco demonstrate a college degree is worth $800,000. in lifetime earnings compared to the average high school education. Assume graduates in 2017 earn $37,132, $35,834, $43,592, $42,587, $56,712 and $47,768. What is the standard deviation for this sample? (Round your intermediate calculations and final answer to the nearest whole number.)  |
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