The residents of Toledo produce on average 600 pounds of solid waste each year, and the standard deviation is approximately 80 pounds.  Use chebyshev's theorem to find the weight range that contains at least 75% of all residents annual garbage weights.

Q: Suppose that a company makes light bulbs with a mean life of 310 hours, and a standard deviation of…

A: Given,  Mean μ = 310 Standard deviation σ = 47 Let x be hours a light bulb last

Q: A company pays its employees an average wage of $22.50 an hour with a standard deviation of $2.30.…

A: Given data: Mean = $22.50 an hour standard deviation = $2.30 To find: What is the highest 5% of the…

Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

A:

Q: Suppose a Nevada Highway Patrol officer takes 50 measurements on the speed of cars on the 15 as they…

A: Given: 50 measurement on the speed of cars.

Q: Customers at a certain pharmacyspend an average of $54.40, with a standard deviation of $13.50.…

A: It is given that customers at a certain pharmacy spend an average of 54.40, with a standard…

Q: A factory produces LED bulbs with an average lifespan of 50,000 hours and a standard deviation of…

A: The top 10% of bulbs last for at least how long is obtained below:From the given information, the…

Q: A population of 2 liter bottles of cola is known to have a mean fill-weight of 2.06 liters and a…

A: Mean = 2.06 Standard Deviation = 0.02 Shape : Bell-Shaped Hence, we will use empirical rule:

Q: find the standard deviation

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: A group of 1100 persons had an average income of $180 with a standard deviation of v121.36. Out of…

A:

Q: A nurse at a local hospital is interested in estimating the birth weight of infants. How large a…

A: Introduction: The 100 (1 – α) % confidence interval for the population mean, μ, when the population…

Q: The weights of 1,000 children average 50kg and the standard deviation is 5kg. How many children…

A: Given  mu=50, sigma=sd=5, n=1000 We want to find How many children weigh between 40kg and 55 kg?

Q: A class has an average height of 68 inches and a standard deviation of 2 inches. Find each value,…

A: For the given data Mean μ = 68 inchesStandard deviation σ = 2 inches

Q: the average grade is 84 with a standard deviation of 4. What is each grade for -1 2 0 1.5 -1.25

A: Given Mean μ=84Standard deviation σ=4 The formula for Z score isZ=X-μσX=Z×σ+μ

Q: Calculate the standard deviation , show it step by step

A:

Q: A population of 2 liter bottles of cola is known to have a mean fill-weight of 2.06 liters and a…

A:

Q: A random sample of 49 shoppers showed that they spend an average of $23.45 per visit and the…

A: 1. Point estimate of the population mean is the sample mean.

Q: A study of a population showed that​ males' body temperatures are approximately Normally distributed…

A: It is given that mean is 98.3 and standard deviation is 0.40.

Q: In a mango farm of 250 trees, the mean harvest is 96.5 kilos of fruit per tree with a standard…

A: Given,sample size(n)=250mean(μ)=96.5standard deviation(σ)=8.4

Q: ) Approximate the mean and standard deviation for temperature.

A: (a) The mean for temperatures is, Temperature Days(f) Midpoint(x) fx 50 - 59 4 54.5 218 60 -…

Q: The monthly income from a particular occupation is normally distributed, with a mean of 3800 dollars…

A: Given,mean(μ)=3800standard deviation(σ)=500

Q: display of data to find the standar

A: Given,

Q: The monthly income of residents of Daisy City is normally distributed with a mean of $3000 and a…

A: GivenMean(μ)=3000standard deviation(σ)=500

Q: The amount of daily sales of a candy shop in weekdays is approximately normally distributed with a…

A: Let us denote: X=the amount of daily sales of a candy shop in weekdays Given that X follows a normal…

Q: Find a 95% CI on the population standard deviation of speeds of drivers ticketed in a 55 mph zone…

A: Confidence interval population standard deviation :  A confidence interval is an statistical…

Q: The average temperature in a town in January is 22.1 oF and the standard deviation is 7.5 pF. What…

A: we have to find average temperature  in Celsius  from given data. given data : mean = 22.1.of…

Q: The average price of a new two-story townhouse is 1,600,000 pesos, find the maximum and minimum…

A: Given Information : The average price of a new two-story townhouse is 1,600,000 pesos . Assume that…

Q: In a factory producing glasses, the weights of glasses are known to have a mean of 160 grams. It is…

A: By looking at a Z table we can conclude that Q1 and Q3 are each .6745 standard deviations from the…

Q: The mean height of men is 69.0 in., and the standard deviation is 2.5 in. Use the range rule of…

A: Obtain the minimum usual value and the maximum usual value by using the range rule of thumb. The…

Q: A manufacturer of light bulbs finds that one light bulb model has a mean life span of 1025 h with a…

A: (a)Given:

Q: The average number of acres burned by forest and range fires in Malibu is 6,300 acres per year, with…

A: It is given that the mean is 6,300 and the standard deviation is 1,750.

Q: mark is provided a score of X=57 that corresponds with a score of X=57 that corresponds with a…

A:

Q: According to a report, the standard deviation of monthly cell phone bills was $5.23 three years ago.…

A: Given that  A report the standard deviation of monthly cell phone bills was $5.23 σ=$5.23

Q: A manufacturer of light bulbs finds that one light bulb model has a mean life span of 1022 h with a…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: ccording to a survey on part-time workers, the average base salary for women in sales is higher than…

A: Let X denotes the average base salary for men  Given: = $2500/month Converting it to 12 moth period,…

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A:

Q: of size 25, determine the mean and standard deviation of x.

A: here given ,  population mean and standard deviation are respectively 78 and 10 inches

Q: Suppose that the life expectancy of a certain brand of nondefective light bulbs is normally…

A:

Q: Mason earned a score of 226 on Exam A that had a mean of 250 and a standard deviation of 40. He is…

A: First find the standardised Z score and the make equivalency

Q: In the past, a chemical company produced 880 pounds of a certain type of plastic per day.  Now,…

A: Given values, n=50x¯=871s=21

Q: In a Q system, the demand rate for strawberry ice cream is normally distributed, with an average of…

A: Here we have to solve part (c) only  Lead time (L) = 6 weeks Average weekly demand(d) = 295…

Q: THE STANDARD DEVIATION

A: Here given AN ENGINEERING STUDENT`SPENDS BETWEEN 5 MINUTES TO 15 MINUTES EATING HIS LUNCH.  Here use…

Q: The revenue of a  shop is approximately normally distributed with a mean of $4500 and a standard…

A:

Q: The average net sales per year of the product vin 60 branches of the DH company is P85 million with…

A: Given information: The net sales of DH company is studied. The following conclusions are made from…

Q: The mean life of a tire is 30,000 km. The standard deviation is 2000 km. Then, 95% of all tires will…

A: We have to find raw scores for given data.

Q: Write down the formulas for the standard deviation of p.

A: Let sample size = n Sample proportion = p̄

Q: A farm hatches chicken eggs in batches of 15 and there is a 3% infertile rate. Find the standard…

A: Obtain the standard deviation for the number of infertile eggs per batch.   The standard deviation…

Q: The monthly income from a particular occupation is normally distributed, with a mean of 5000 dollars…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: The selling price of a new car is normally distributed with an average of $19110 and a standard…

A: Let X denotes a selling price of a new car. Here, X follows normal distribution with mean value of…

Q: A survey indicates that the customers of a local supermarket spend an average of 45 minutes shopping…

A: The customer of local supermarket spend an average of 45 minutes for shopping. The standard…