A strong correlation between ice cream sales and drowning incidents proves that ice cream causes drowning.

In 2023, City A (population 350,000) reported 420 cases of robbery. City B (population 180,000) reported 290 robbery cases in the same year. Calculate and compare the robbery rate per 100,000 residents for both cities. Which city has the higher robbery rate? (Write the rates in both cities and choose a city with a higher rate).

Calculate the mean of the following data (round your answers to two decimal places.)

The main entity being studied in the research is called:

Which of the following statements correctly describes the difference between a t-score and a z-score?

Find the mode in the following data.

In a normal distribution, about ___ % of values lie within ±1 SD from the mean.

In 2022, 320 assault cases were reported in a metro region. Out of those, 128 cases involved a weapon. What is the proportion of assault cases involving a weapon? (Express your answer as a percentage. Round your answer to two decimal places.)

The following dataset is negatively skewed.

According to the Central Limit Theorem, as the sample size increases, the sampling distribution becomes more normal.