8. Find Q.D. and its coefficient from the following data. Class 130- 134 150- 154 155- 160- 164 5 135- 140- 145- 144 Interval 149 28 159 Frequency 139 12 3 21 19 12

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Q: How many different hamburgers are available at Heinz's Burger?

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Q: In a sample of 7 observations, the values are 17, 11, 12, 13, 14, 15, 16. Find the 95% confidence…

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