math 115

posted by .

i am trying to find this answer there are 3 questions.

1. micheal kept the following records of her phone bills for 12 months:
$47, $42, $56, $46, $63, $49, $47, $40, $58, $63, $51, $62

Find the mean and median of michael's monthly phone bills.

A) mean: $52, median: $50 C) mean: $50, median: $52
B) mean: $52, median: $48 D) mean: $48, median: $50

2.Find the five-number summary of the following set of numbers. the answers at the bottom a,b,c,d.

0.16, 0.08, 0.27, 0.20, 0.22, 0.32, 0.25, 0.18, 0.28, 0.27

A)0.08, 0.18, 0.223, 0.27, 0.32
C)0.08, 0.18, 0.225, 0.27, 0.28
B)0.08, 0.18, 0.235, 0.27, 0.32
D)0.08, 0.16, 0.23, 0.28, 0.32


Find the first and third quartiles, Q1 and Q3, of the following set of numbers.

14, 4, 13, 18, 8, 15, 8, 3, 11, 8

A) 4; 13 B) 4; 15
C) 8; 14 D) 3; 18

  • math 115 -

    1.
    The mean can be found by adding up each value and dividing by the number of values. The mean is the middle value when the values are put in order.

    2.
    The 5 number summary is the following: the minimum value, the 1st quartile, the median, the 3rd quartile, and the maximum.

    The 1st quartile is the median of all values less than the median. Similarly, the 3rd quartile is the median of all values greater than the median.

  • math 115 -

    thank you now i understand it, i didn't know what i was doing.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. M ath

    Kim kept the following records of her phone bills for 12 months:$53, $48, $62, $53, $58, $55, $53, $46, $64, $69, $57, $68 - did not match any documents. Find the a.mean b. median & c. mode.
  2. Algebra

    Another question: A cell phone company charges $60 for a cell phone and $40 per month under its economy plan. Formulate and graph a model that can be used to determine the total cost, C(t), of operating a cell phone for t months. Find …
  3. math

    1. Find the median of the following set of numbers. = B 45, 21, 54, 22, 65, 61 A) 54 B)49 1/2 C) 45 D)48 1/2 2. The following scores were recorded on a 100-point examination: 95, 75, 76, 86, 96, 71, 68, 81, 95, 76, 69, 82, 93, 88, …
  4. math-word problem

    Media Services charge $20 for a phone and $30/month for its economy plan. The equation C=30t +20 describes the total cost, C of operating a media service phone for t months. The total cost for 10 months of service is... My answer is …
  5. Math

    Media service charges $20 for a phone and $30/month for its economy plan. The equation c=30t +20 describes the total cost,c, of operating Media Services phone for t months. A) The total cost for 8 months of service is?
  6. math

    John's account of 98.50 has been delinquent for 3 months. After 90 days office charges a 2% service charge, compounded monthly that is added to future bills. What would be the amount owed after 9 months?
  7. Math

    According to CTIA-The Wireless Association, the mean monthly cell phone bill in 2004 was $50.64. A market researcher believes that the mean monthly cell phone bill is different today, but is not sure whether bills have declined because …
  8. Algebra

    Eli collects old vinyl records. He buys 2 vinyl records each month. He started with 18 vinyl records. *make an equation to model the number of records Eli has after x months. // how many records will Eli have after 22 months?
  9. Statistics

    The amount of Jen's monthly phone bill is normally distributed with a mean of $55 and a standard deviation of $12. Calculate the z score for each scenario. What percentage of her phone bills are above 79?
  10. MATH

    Sally is evaluating some test papers. There are 80 multiple choice questions in the test. Students get two points for every correct answer and for every wrong answer or any question left blank, one point is deducted from the total …

More Similar Questions