Statistics - math word problems - page 10 of 46
Number of problems found: 919
- Average Height of Classmates
At the last measurement, 4 classmates were 164 cm, 168 cm, 172 cm, and 176 cm tall, and the 5th classmate was 5 cm shorter than the average height of the first four. What was the average height of the five classmates in cm? - US GDP
Consider the following dataset, which contains the domestic US gross in millions of the top-grossing movies over the last five years. 300,452,513,550,780 I. Find the Mean of the Dataset II. Find the Squared deviation of the second observation from the mea - Average temperature
Calculate the average daily temperature from 8 measured values during the day: -8; -5; -5; 1; 3; 0; -4; -6 °C ... - Dataset
Data: 11,15,11,16,12,17,13,21,14,21,15,22 Find the dispersion of a given dataset. - Daily temperature
The average daily temperature measurement for one week every day at the same hour was -2.8 °C. We measured all temperatures on different days are different. The highest daily maximum temperature was 2.4 °C, and the lowest was -6 °C. Determine the options - Statistical example
Calculate in the set of patients (attached table 1) A) using the table editor EXCEL B) with the program "Social Science Statistics Calculator" (SSSC) on the web page a) the average age of the patients and the standard deviation (STDEV) b) the average dura - Variance value
What is the value of the variance of the data in the file if the calculated standard deviation = 2? a) Dispersion = 6 b) Dispersion = 4 c) Dispersion = 9 d) Dispersion = 2 - Energy
In one region, the September energy consumption levels for single-family homes are normally distributed with a mean of 1050 kWh and a standard deviation of 218 kWh. Find the consumption level separating the bottom 45% from the top 55%. - Average height
In a class are 34 students. The average height of the students is 165 cm. What will be the average height of students in the classroom when two pupils, tall 176 cm and 170 cm, move from this school/class? The average height in meters of all the students i - Store
The company has three industrial goods stores. The following data are available: Store; Sales September; Sales October; Price September CZK/pcs; Price October CZK/pcs A; 1500; 1800; 39; 40 B; 700; 721; 36; 35 C; 300; 279; 34; 35 Total; 2500; 2800; X; X De - Grade average - insufficient
Classes are compared by achievement. In classes 3.A and 3.B the following grades were achieved in the subject of statistics. grade number of grades 3.A number of grades 3.B excellent 4 6 very good 10 11 good 12 9 satisfactory 5 4 insufficient 2 4 Which cl - On the number line
What number is exactly in the middle between 9.8 and -2.4 on the number line? - SD - mean
The mean is 10, and the standard deviation is 3.5. If the data set contains 40 data values, approximately how many of the data values will fall within the range of 6.5 to 13.5? - Confidence interval
A food testing laboratory in Abu Dhabi has been commissioned to estimate the amount of olive oil contained in 1-gallon tins purchased from a range of international olive oil producers. The manufacturers state that the standard deviation of the amount of o - Three sigma rule
Stomach weights are normally distributed, with a mean of 1314 g and a standard deviation of 113 g. State the probability that a randomly selected stomach weighs more than 1118 g. (Report the probabilities using at least four decimal places. ) - Frequency distribution
The following frequency distribution gives the time spent for a fill-up at a gas station. Assume that each value in a class is equal to the midpoint of the class. Estimate the mean fill-up time for the given data. Please round your answer to the nearest h - Weighted-average
Calculate the weighted average cost of the following inventory purchases: Date Quantity; Purchased ; Cost per Unit May 4; 33; $12.25 May 11; 41; $13.87 May 29; 37; $11.99 - Average height
There are twice as many girls in the class as there are boys. The average height of girls is 177 cm, and boys 186 cm. What is the average height of students in this class? - Rice - packaging line
An automatic machine weighs rice into packages on a packaging line. Suppose that the mass of rice in a package is a random variable which has a normal probability distribution with mean value (Greek letter Mu) = 500 g and standard deviation (Greek letter - Consider 6
Consider the following word problem: The temperature readings for 20 days at 1 AM at a local ski resort were recorded as follows: 9° 27° −4° 1° 5° 14° 6° 28° −2° 16° 30° 4° 20° 30° −5° 15° −7° 25° −1° 5° What was the average of the recorded temperatures f
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