Which graph is best for showing parts of a whole?, Line graph, Bar graph, Pie graph, Stem-and-leaf plot, A line graph is most useful for showing, Categories, Data that changes over time, Exact data values, Parts of a whole, In a stem-and-leaf plot, the “leaf” represents the, Hundreds digit, Ones digit, Tens digit, Total number of data values, A bar graph with three tall bars and one short bar shows that:, The graph is incorrect, All categories are equal, The short bar represents the highest value, One category has a smaller value than the others, A pie chart shows 25% of students like Science. This means the slice is, One-fourth of the circle, One-third of the circle, One-half of the circle, The whole circle, A stem-and-leaf plot has stem 6 and leaves 1, 4, 9. This means the data values are, 6, 1, 4, 9, 16, 14, 19, 61, 64, 69, 610, 640, 690, Which graph should you use to compare the number of students in different school clubs?, Bar graph, Line graph, Pie graph, Stem-and-leaf plot, A teacher recorded daily temperature for a week. Which graph should be used?, Bar graph, Line graph, Pie graph, Stem-and-leaf plot, You want to show the exact quiz scores of 20 students. Which graph is MOST appropriate?, Bar graph, Line graph, Pie graph, Stem-and-leaf plot, A pie graph shows one very small slice. What does this MOST likely represent?, Half of the data, Equal distribution, The largest category, A category with very few responses, A bar graph shows that Category A = 12, B = 12, C = 5. What can you conclude?, A is smaller than C, C is the largest category, All categories are equal, A and B have equal values, In a stem-and-leaf plot, Stem 3 has more leaves than Stem 4. This means:, All values are the same, There are more values in the 30s, The values in the 40s are larger, There are more values in the 40s, A bar graph shows the number of books read by students. The tallest bar represents:, The total number of students, The average number of books read, The student who read the most books, The student who read the fewest books, In a line graph, an upward slope from left to right indicates:, A decrease, An increase, Missing data, No change, In a pie chart, each slice represents:, Raw data only, A trend over time, A part of the whole, A list of individual values, A line graph shows a horizontal line. This means:, The data is incorrect, The value decreased, The value increased, The value remained constant, A bar graph comparing three classes shows Class A = 15, Class B = 20, Class C = 20. Which statement is true?, Class A has the most students, All classes have equal numbers of students, Class C has the fewest students, Class B and C have equal numbers of students, A pie graph shows that 10% of students prefer tennis. This means:, Tennis is the most popular sport, Exactly half of the students prefer tennis, Tennis is preferred by all students, Tennis is preferred by a minority of students, A line graph shows the monthly rainfall for six months. The graph goes up and down. What does this indicate?, The data is incorrect, The rainfall was constant, The rainfall fluctuated, All months had the same rainfall, A student wants to find which category has the highest value on a bar graph. What should they do?, Ignore the graph, Count the number of bars, Read the axis labels only, Compare the heights of the bars, A pie chart shows four slices of different sizes. Which slice represents the category with the largest value?, Any slice, The middle slice, The largest slice, The smallest slice, A line graph shows a sudden drop in sales. What can be concluded?, Sales increased rapidly, Sales remained stable, Sales decreased suddenly, The data is incomplete, A = 10, B = 25, C = 15. Which category has the median value?, A, B, C, None, A pie chart is used to show temperature changes over a week. Why is this inappropriate?, Pie charts are more colorful, Pie charts cannot show trends over time, Pie charts cannot be used in math, Pie charts can only show small numbers, A bar graph is drawn with uneven spacing between bars. How does this affect interpretation?, The data is clearer, The graph may be misleading, Nothing changes, The values are easier to read, Which of the following is data collection technique?, Calculating mean, Drawing graphs, Sorting, Survey, What do we call a small part of a population chosen for a study?, Graph, Sample, Variable, Survey, Which sampling method gives every member of the population an equal chance of being chosen?, Convenience sampling, Cluster sampling, Purposive sampling, Random sampling, Why is sampling used instead of surveying the entire population?, It guarantees perfect accuracy, It eliminates all possible errors, It avoids the need to collect data, It is faster, more practical, and still represents the population, A researcher divides students into groups based on grade level, then chooses some from each group. Why is this method effective?, It guarantees random errors, It avoids the need to collect data, It is the fastest method available, It ensures that all groups are represented, If a sample is not representative of the population, what is the likely result?, The data will be unbiased, The conclusions will be accurate, The population becomes smaller, The results may not reflect the true situation, You are assigned to survey Grade 7 students about their favorite sport. To avoid bias, what should you do?, Ask only the athletes, Ask only your classmates, Ask students who are easy to reach, Select students randomly from all Grade 7 sections, A researcher chooses every 3rd person entering the gate to answer a survey about students' study habits. What sampling method is being applied?, Convenience sampling, Random sampling, Stratified sampling, Systematic sampling, You observe a class and record the number of students participating in group work. What type of data collection is being used? being used?, Experiment, Interview, Observation, Survey, A school wants to know how many students prefer online activities. They survey only the ICT club. What type of bias is likely to occur?, Instrument bias, Measurement bias, Response bias, Sampling bias

MATH REVIEWER

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