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Home Question Bank Math Statistics Archive 2024 December 30

Statistics Questions from Dec 30,2024

Browse the Statistics Q&A Archive for Dec 30,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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4. The line of best fit is calculated for a data set that tracks the number of miles that passenger cars traveled annually in the US from 1960 to 2010 . In the model, \( x=0 \) represents the year 1960 , and \( y \) is the number of miles traveled in billions. If the line of best fit is \( y=0.0293 x+0.563 \), approximately how many additional miles were traveled for every 5 years that passed? \( y=0.0293(5)+C \) What is a scatter plot? Defina um diagrama de dispersão e explique sua utilidade na análise de dados. Asich of the following relationships represents a positive correlation between two variables? As the number of miles driven increases, the amount of gasoline in the tank decreases. As the number of hours a person exercises decreases, the weight of that person increases. Aeceives increases, the growth rate of the plant increases. Ases, the student's overall grade remains the same. Question: 190150 When the weights of newborn babies are graphed, the distribution of weights is symmetric with the majority of weights centered around a single peak. Which of the following describes the shape of this distribution? Bimodal Bell-shaped Skewed right The data below represents students test scores. Which of the following is the median of the set of data? \( 11,12,18,14,22,17,17,12,25,12,13 \) The data below represents students' test scores. Which of the following is the median of the set of data? How do you identify the relationship between two variables in a scatter plot? 1- Put the ( \( \vee \) ) mark against the statement if it is true and \( (x) \) if it false (10 POIN 1) The number of chlldren in a family is a qualitative data. 2) the mode is always found 3) For any two events \( A \) and \( B \) we must have \( P(A \cup B)=P(A)+P(B) \) 4) The sum of relative frequencies is 1 5) If the events \( A \& B \) are independent then \( \bar{A} \& \bar{B} \) are dependent 6) If the mean >median \( > \) mod the curve is skew from right. 7) The number of different permutations of word \( M I S S I S S I P P I \) is 3400 8) If the mode \( =24 \) and mean \( =60 \) then median \( =50 \). 9) In combination order is not important. 10) If \( X \) is a continuous random variable, then \( P(X=5)=0 \) What is a scatter plot?
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