d. What percentage of students scored at least 66? e. How many students scored more than 98 on the test?

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Q: (d) Would it be unusual if more than 7 of them weigh more than 20 pounds?

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A: Six scores are in the sample.

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Q: In a business survey for the Best Purchase Company Joey found from collecting data on 100 households…

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Q: Approximately how many of the families in the survey have less than four children? O 130 O 140 260…

A: Given graph is

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Q: 44. What is the value of E(X + 3)² for the scores: 1, 5, 7, 11?

A: Given score is 1, 5, 7, 11

Q: (a) What percentage of people has an IQ score between 90 and 110? (b) What percentage of people has…

A: Given that  Mean = 100 and  SD = 10

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Q: (b) What percentage of the eight population values stated above, fall within the interval (μ- σ, μ +…

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Q: C) What percentage of CT scans in this target population would be positive?

A: Given: P(Cancer) = 3% = 0.03 P(No cancer) = 1-0.03 = 0.97. P(test positive|cancer) = 89% = 0.89…

Q: 29. What is the measure of AD?

A: To Find: Measure of arc AD.

Q: The scores on a statewide chemistry exam were normally distributed with ?=73.08 and ?=6. Gabriela…

A: Given data isMean(μ)=73.08standard deviation(σ)=6

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A: (a) The sample size is 15.

Q: if 540 people preferred walking and 900 people were surveyed how many people preferred running.

A: Given,    People preferred walking = 540 people surveyed are 900.   Calculations,    900 - 540 = 360

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A: 1) Given that - a = 15000 and b = 25000

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Q: 23. Calculate the SS for your D scores:

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Q: 5 the measure of ZT?

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Q: d) What percentage of women are TALLER than 5 feet 11 inches? Round to nearest tenth of a percent.…

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Q: a) In a survey of 100 SLT students at I.A.S., the number found e follows: English 52. Mathematics…

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Q: How many students were studying exactly two of the grade 12 math courses? O 47 39 55 63

A:

Q: A survey was conducted on a group of 190 students.

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A: Given: Sample data: Grade frequency A 8 B 26 C 31 D 24 F 41

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Q: (a) What is the class width? 0 (b) How many concerts were attended by from 300 to 424 people? 0 (c)…

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Q: How many females were surveyed? Baseball Basketball Football Total 13 15 20 48 Male 23 16 13 52…

A: Given , Female in baseball is 23. Female in basketball is 16. And Female in football is 13.

Q: (d) On what percentage of days do they get more than 140 pieces of mail? Draw a diagram showing the…

A: You have circled question #d, so I am answering that only. Please mention the question numbers which…

Q: A. What score must a student get in order to pass? B. How many students would get a score between 77…

A: here  given , mean = 74  and standard deviation  = 7 Y= score of student in exam

Q: Based on the histogram that shows the heights of hibiscus plants in inches i. How many plants have…

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Q: Researchers estimated that a wooded area is home to 350 blue jays. In their second sample they…

A: topic - ratio and percentage

Q: a. How many individuals are described in this table? b. How many females were among the respondents?…

A: