20 statistics questions (midterm)

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I screenshotted my statistics midterm exam. There are 20 questions!

Please help! It is due sunday.


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X х g CW The Flash Video - Honey S SOLUTION: Landlord-Te iCampus Bb McGraw-Hill ALEKS - MAX A ALEKS: Nadia Haleem {- an - Secure https://www-awh.aleks.com/alekscgi/x/Isl.exe/10_u-IgNsikr7;8P3jH-lv-6txjbonmD2YV6aV9y3XZztyKQsaQKoyROkT1w8JjXD6q8d81f2BGufK3ckYUaMiGBA3yJitWhFVV3RIFVwX9h... ☆ iCampus ALEKS HELP WORKSHEET INBOX REPORT OPTIONS English Nadia Haleem MyPie Review Dictionary Calculator Assignments e Book Gradebook Calendar Intro Stat Question #1 / 20 Which of the following variables are best thought of as continuous, which discrete? Indicate your choice for each by checking the appropriate column. Variable Discrete Continuous (a) The total number of goals scored by a soccer team in a season a (b) The actual length of a roll of plastic wrap advertised to be 30 feet long O O (c) The number of participants in a study who describe themselves as "perfectionistic" o o (d) The number of damaged chromosomes on a petri dish following irradiation Clear Undo Help Next Question >> H 4:54 PM 2/2/2018 ♡ х g CW The Flash Video - Honey X S SOLUTION: Landlord-Te iCampus Bb McGraw-Hill ALEKS - MAX A ALEKS: Nadia Haleem {- an - Secure https://www-awh.aleks.com/alekscgi/x/Isl.exe/10_u-IgNsikr7;8P3jH-lv-6txjbonmD2YV6aV9y3XZztyKQsaQKoyROkT1w8JjXD6q8d81f2BGufK3ckYUaMiGBA3yJitWhFVV3RIFVwX9h... ☆ iCampus ALEKS HELP WORKSHEET INBOX REPORT OPTIONS English Nadia Haleem MyPie Review Dictionary Calculator Assignments e Book Gradebook 5) Calendar Intro Stat Question #2 / 20 The stem-and-leaf display below gives the fuel efficiencies in miles per gallon) for a sample of 18 new cars. Use the display to answer the following questions. Fuel efficiency (miles per gallon) 1107 2 223 449 3101126789 4/25 Key: 10 means a fuel efficiency of 10 miles per gallon. (a) What is the highest fuel efficiency in the sample overall? 0 (b) What is the lowest fuel efficiency in the 30s? 0 (c) How many cars in the sample have fuel efficiencies in the 10s? Clear Undo Help > 4:54 PM 2/2/2018 X х g CW The Flash Video - Honey S SOLUTION: Landlord-Te iCampus Bb McGraw-Hill ALEKS - MAX A ALEKS: Nadia Haleem {- an - Secure https://www-awh.aleks.com/alekscgi/x/Isl.exe/10_u-IgNsikr7;8P3jH-lv-6txjbonmD2YV6aV9y3XZztyKQsaQKoyROkT1w8JjXD6q8d81f2BGufK3ckYUaMiGBA3yJitWhFVV3RIFVwX9h... ☆ iCampus ALEKS HELP WORKSHEET INBOX REPORT OPTIONS English Nadia Haleem MyPie Review Dictionary Calculator Assignments e Book Gradebook Calendar Intro Stat Question #3 / 20 Anagram puzzles involve sets of scrambled letters that must be rearranged to form words. A standard intelligence test employs these puzzles as an aid in assessing verbal ability. Several years ago, an undergraduate noticed that some versions of the intelligence test employed anagram puzzles with lower-case letters, and some versions employed anagram puzzles with upper-case letters. She performed experiments, with college students as participants, to examine times for completion for the two versions. The histogram below summarizes information about the times for completion for the 25 students she tested on the lower-case version. Frequency 8+ 6 6+ 4- 2 2 2- OHHH 500 1300 1500 700 900 1100 Time for completion (in seconds) Based on the histogram, find the proportion of times for completion in the sample that are less than 1100 seconds. Write your answer as a decimal, and do not round your answer. Clear Undo Help It 4:54 PM 2/2/2018 ♡ X х g CW The Flash Video - Honey S SOLUTION: Landlord-Te iCampus Bb McGraw-Hill ALEKS - MAX A ALEKS: Nadia Haleem {- an • Secure | https://www-awh.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-Iv-6txjbonmD2YV6aV9y3XZztyKQsaQKoyROkT1w8JjXD6q8d81f2BGufK3ckYUaMIGBA3yJitWhFVV3RIfVwX9h.... ☆ iCampus ALEKS HELP WORKSHEET INBOX REPORT OPTIONS English Nadia Haleem MyPie Review Dictionary Calculator Assignments e Book Gradebook Calendar Intro Stat 16 17 18 19 20 Submit Test Total time remaining: 3:58 Question #4 / 20 The pie chart below shows how the annual budget for a certain company is divided by department. If the total budget is $150,000,000, what amount is budgeted for Sales, Support, and Editorial combined? Media Support 25% Editorial 7% Research 32% si Clear Undo Help Engineering 15% Sales 18% > 4:55 PM 2/2/2018 X х g CW The Flash Video - Honey S SOLUTION: Landlord-Te iCampus Bb McGraw-Hill ALEKS - MAX A ALEKS: Nadia Haleem {- an - Secure https://www-awh.aleks.com/alekscgi/x/Isl.exe/10_u-IgNsikr7;8P3jH-lv-6txjbonmD2YV6aV9y3XZztyKQsaQKoyROkT1w8JjXD6q8d81f2BGufK3ckYUaMiGBA3yJitWhFVV3RIFVwX9h... ☆ iCampus ALEKS HELP WORKSHEET INBOX REPORT OPTIONS English Nadia Haleem MyPic Review Dictionary Calculator Assignments e Book Gradebook Calendar Intro Stat Question #5 / 20 A sample of 19 participants took part in a hearing experiment. Among other things, the absolute hearing threshold (in decibels) was measured for each participant. The 19 measurements were as follows: 25, 22, 18, 35, 37, 34, 31, 27, 24, 30, 30, 30, 26, 26, 23, 23, 20, 20,20 Draw the histogram for these data using an initial class boundary of 17.5 and a class width of 4. Note that you can add or remove classes from the figure. Label each class with its endpoints. Quick Help How do I add/remove a bar in a histogram? Frequency 611 0 V 0 0 0 0 Absolute hearing threshold (in decibels) Clear Undo Help 4:55 PM 2/2/2018
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