STATISTICS PROBLEM SOLVING 1

What is the sample size given that the confidence level of 95 (giving a margin of error of 0.05) and the population size is 800?

• 266

• 267

• 268

• 265

Tags

CCSS.HSS.IC.B.4

A PE instructor examined a random sample of 12 students of a certain section to determine the average height of the students. The following was recorded in cm 160, 158, 161, 148, 153, 156, 158, 152, 165, 155, 164, 150. Compute the sample mean.

• 156.67

• 156.33

• 155.67

• 155.33

Tags

CCSS.6.SP.B.5C

The number of students at six different sections are 40, 45, 42, 41, 42, and 43. Find the mean number of students for the section.

• 41.1667

• 42.1337

• 42.1667

• 41.3333

Tags

CCSS.6.SP.B.5C

4. Given the weight of the some students these are 55, 60, 45, 58, 48, 51, 53, 47 and 57. Find the median of the given data.

• 48

• 55

• 51

• 53

Tags

CCSS.6.SP.B.5C

On the first semester, a grade 12 student has made a grades of 90, 85, 87, 90, 88, 87, 91, 86, 83. Find the mode for this sample grades.

• 90, 87

• 90, 88

• 87, 86

• 90, 86

Tags

CCSS.6.SP.B.5C

A group of students take an exam in statistics using Quiziz. They made grades of 43, 45, 48, 44, 41, 38, 46, 39, and 49. What is the range for this sample grades.

• 13

• 14

• 11

• 10

Tags

CCSS.6.SP.B.5C

A comparison of the jelly ace price at four random stores in San Pascual showed increases from the previous month. Given the price of 30, 29, 33 and 31 pesos for a pack. Find the variance of this random sample of price increase.

• 2.6719

• 2.9167

• 2.1667

• 2.1967

A comparison of the jelly ace price at four random stores in San Pascual showed increases from the previous month. Given the price of 42, 46, 43 and 45 pesos for a pack. Find the standard deviation of this random sample of price increase.

• 1.8253

• 1.8259

• 1.8255

• 1.8257

A comparison of the sprite price at four random stores in San Pascual showed increases from the previous month. Given the price of 65, 63, 65 and 62 pesos for a pack. Find the variance of this population.

• 1.299

• 1.311

• 1.300

• 1.289

A comparison of the coke price at four random stores in San Pascual showed increases from the previous month. Given the price of 53, 55, 56 and 54 pesos for a pack. Find the standard deviation of this population.

• 1.31

• 1.28

• 1.30

• 1.29