The sum of two measures is interpretable if these values were measured on an ordinal scale.

In simple random sampling without replacement, all possible subsets containing n elements of the population have the same chances of selection.

The survey method is the most appropriate data collection method in establishing cause-and-effect.

For the computed average to be interpretable, we require that the scale used to measure the variable to have an absolute zero.

In a study that aims to estimate the prevalence of Periodic Fever Syndrome (PFS) among Filipinos, the target population is the collection of all Filipinos with PFS.

If Cherry Gil’s annual income is the 99th percentile income of Barangay Macondo, then Cherry Gil has the highest annual income in Barangay Macondo.

A negatively skewed distribution has more negative than positive values.

Since majority of Filipino families have incomes that are very low compared to few extremely rich families, income distribution in the Philippines is positively skewed.

The median is smaller than the mean in a unimodal distribution that is negatively skewed.

A population coefficient of kurtosis (𝑘₁) of 2 indicates that the distribution is platykurtic.

Probability sampling gives all elements in the population an equal chance of being selected in the sample.

If the mean score of students in a 50-point exam is 25 then about half of the students obtained a score less than or equal to 25.

A student who got a z-score of zero in an achievement test implies that the student did not get any correct answer.

The higher the standard deviation, the farther the observations are from the mean.

Which of the following summary measures is still meaningful to compute even for variables measured using nominal level?

A company claims that the average lifetime of their 1000 light bulbs is 200 hours. A random sample of 150 lightbulbs was tested and the average lifetime was computed as 148 hours with a standard deviation of 5 hours. Which of the following is a parameter?

Which among the following is an application of Inferential Statistics?

A rubbing alcohol company has to make their products within a standard of 70% isopropyl solution so that its germ-killing qualities are optimal and that there are no side-effects on the skin of their buyers. The quality control department conducted a survey of their products in the production line and from a sample of 30 units, the average concentration was 72%. The value 70% is a

A nongovernment organization compares the household expenditures of two districts in Quezon City. What method of primary data collection is most appropriate for this particular case?

Which of the following graphs is most appropriate to use when the respective contributions of Luzon, Visayas, and Mindanao to the national rice production are shown?

Suppose the standard deviations of the income of private and public school teachers are 8000 and 5000. Which of the following is TRUE?

The mean and standard deviation of a data set are 5 and 7, respectively. If each observation in the data set is multiplied by ½, what happens to the mean and variance of the new data set?

Social Asia released their monthly data on the President’s approval rating for the year 2018. To show that this is decreasing, which of the following charts should be used?

Let the target population be the set of all senior high school students in Metro Manila. What is the sampling unit if the selection of sample is from the list of public schools in Metro Manila?

A kindergarten teacher surveyed her students regarding their favorite ice cream flavor. The responses of her students are presented. What is the mode?

The average age of senior citizens in a home for the elderly is 72 years old with a standard deviation of 4 years. Assuming that the age of the same group of senior citizens are measured after 2 years, what will be the new standard deviation of their ages?

A study of 100 Stat 101 students revealed that the 55^th percentile of their final exam scores is 45. Then, at least 45 individuals have scores _________.

Out of the 100 genins who participated in the Chunin Exam for the past years, Itachi’s score was recorded to be the 99th percentile of their exam scores. Therefore, it can be said that

The final exam scores of students from both Class A and Class B are represented by the boxplots. Which of the following is true?

Is the distribution for Dataset A symmetric, positively skewed, or negatively skewed?

Is the distribution for Dataset B symmetric, positively skewed, or negatively skewed?

Which dataset has the most varied observations?

Which dataset(s) has(have) most varied lower 25% of the observations?

Which dataset(s) has(have) the lowest median?

Which datasets has(have) at least 75% of its observations less than or equal to 1?