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Home Question Bank Math Statistics Archive 2024 December 14

Statistics Questions from Dec 14,2024

Browse the Statistics Q&A Archive for Dec 14,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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For a frequency distribution table, it is found that \( \sum f x=234 \) and \( \sum f \) Then mean of that data is 73. The mean of \( \frac{1}{2}, \frac{1}{3}, \frac{1}{4}, \frac{3}{8} \) and \( \frac{5}{6} \) is Jamestown is holding a special election to approve funding for a new library. The Jamestown News asked a sample of 300 registered voters how they plan to vote on the library. Of those in the sample, 186 people said they plan to vote in favor of the library. Application type Questions In a bar graph, if a rectangle of height 7 cm represents 42 boys, the rectangle of height 5 cm represents \( \begin{array}{llll}\text { A) } 25 & \text { B) } 30 & \text { C) } 32 & \text { boys }\end{array} \) c. \( P(Z>z)=0.025 \) d. \( P(Z<z)=0.35 \) e. \( P(Z<z)=0.9772 \) (c) Calculate the mode for the distribution (I0 MARKS) (d) Calculate the median for the distribution (10 MARKS) (c) Draw a histogram for the distribution (io iMARKS) Using the data in Question I above: Each person in a community was asked, "What is your favorite type of pet?" The circle graph below summarizes their answers. (a) Which category was chosen by approximately one-fourth of the community? 4. Out of the 23 people at the networking meeting, 12 work in industry, 6 people teach, 3 work for the Tourist Bureau, and 2 work for the city. What percent does each group represent? Match the percent to the group. Zia is laid off, and sends out 18 job applications. Statistically, one in six applications results in an interview. How many interviews can Zia expect? Shade the number of applications that result in interviews. 3 Given \( A=\{ \) multiples of 3 from 15 to 60\( \} \). \( B=\{ \) multiples of 5 from 15 to 60\( \} \), and \( C=\{ \) numbers from 15 to 60 that is divisible exactly by 3 and 5\( \} \). Find the values of \( n(A), n(B) \) and \( n(C) \).
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