The average number of cars arriving at a petrol station is 2 per minute. What is the probability that any randomly selected four-minute interval, 5 cars will arrive at the station?

Q: snip

A: If a single ambulance is available at 70% of the time and three ambulances are stationed in a…

Q: On average, a textbook author makes 1.5 word-processing errors per page on the first draft of her…

A: Solution: Let X be number of word-procession errors per 2 pages on the first draft. Since it is a…

Q: the average accident on a certain road section is at 2.4 per day. what is the probability that there…

A:

Q: What is the probability of being dealt three cards of one denomination and two of another in…

A: We have to find given probability.

Q: The quality of computer disks is measured by the number of missing pulses. For a certain brand of…

A:

Q: A fair die is rolled 12 times. What is the probability of rolling a 4 on the die 4 times?

A: A binomial probability distribution has following properties. There are only 2 possible outcomes of…

Q: The probability that an individual is​ left-handed is 0.130. In a class of 25 ​students, what is…

A:

Q: The average number of people who die in a month from a rare disease in a city is 4. What is the…

A: The average number of people who die in a month from a rare disease in a city is 4.

Q: The average number of homes sold by the Acme Realty company is 2 homes per day. What is the…

A: Given Information Average number of homes sold by the Acme Realty is 2 homes λ = 2 Let X denotes the…

Q: On average, 24 cars pass through a toll booth every hour. What is the probability of at least one…

A:

Q: Find the indicated probability. 1) Of 1454 people who came into a blood bank to give blood, 357 were…

A: Given Data: The number of people who came to give blood is: n=1454 The number of people ineligible…

Q: The average number of newspapers sold at a busy intersection during rush hour is 5 per minute. What…

A: Given that the average number of newspapers sold at a busy intersection during rush hour is 5 per…

Q: In a communication channel, data is sent in 10-bit packets. The percentage of a bit sent with error…

A: Given In a communication channel, data is sent in 10-bit packets. The percentage of a bit sent with…

Q: The average number of diesel tankers arriving each day at a certain port city is known to be 5. What…

A:

Q: A die is rolled twice. What is the probability of showing a 1 on the first roll and an even number…

A: Consider that die is rolled twice. The sample space of die is rolled twice is, The total number of…

Q: A die was rolled 16 times, what is the probability of rolling a number greater than 4 seven times.

A: Given that  n=16 , p=2/6=1/3  X~Binomial(n=16,p=1/3) X=Number of time the number greater than 4…

Q: What is the probability of zero motor accident during any 2- mile interval along Buntun highway?

A: Here Given  36 accidents in 20 miles

Q: A baseball player has a batting average of 0.215 What is the probability that he has exactly 3 hits…

A:

Q: A die is rolled twice. What is the probability of showing a 5 on the first roll and an even number…

A: Sample space for a die rolled twice is given by,…

Q: What is the probability of being dealt four cards of one denomination and two of another in six-card…

A: Given data: What is the probability of being dealt four cards of one denomination and two of…

Q: In a communication channel, data is sent in 10-bit packets. The percentage of a bit sent with error…

A: Introduction: Denote X as the random variable of interest here, which is the number of bad bits in a…

Q: The probability that an individual is left-handed is 0.140. In a class of 15 students, what is the…

A: Here, n = 15 and p = 0.140.

Q: The probability that an athlete finishes a triathlon is 0.66. What is the probability that no less…

A: Introduction: Denote p̂ as the sample proportion of triathletes who will cross the finish line,…

Q: The average number of cars arriving at a petrol station is 2 per minute. What is the probability…

A: Solution: Let X be the number of cars arriving at a petrol station in four-minute interval. From the…

Q: The probability that an individual is​ left-handed is 0.190. In a class of 27 ​students, what is…

A: From the provided information, Sample size (n) = 27 Probability that an individual is left-handed…

Q: The average number of loaves of bread put on a shelf in a bakery in a half-hour period is 12. Of…

A: Given dataThe average number of loaves of bread put on a shelf in a bakery in a half-hour period is…

Q: A coin is tossed 6 times. What is the probability of getting at least one tail? Express your answer…

A:

Q: The average number of cars arriving at a drive-thru fast food restaurant is 3 in ten minutes, what…

A: GivenAn average no.of cars arriving at a drive-thru fast food restaurant is 3 in tenminutesλ=1.5 for…

Q: an observer counts 36O vehicles per hour at a highway. estimate the probability of having more than…

A: A observer count 360 vehicle per hour at a highway.

Q: The probability of finding a gold card is 0.03. What is the probability that 1 out of 10 randomly…

A:

Q: The probability of getting at least 2 heads when a coin is tossed four times is?

A: Obtain the probability of getting at least 2 heads when a coin is tossed four times. The probability…

Q: An experienced invoice clerk makes an error once in every 100 invoices, on average. (a) What is the…

A: (a). Calculate the probability of finding a batch of 100 invoices without error: Here, it is given…

Q: The time taken by brake discs to overheat on construction equipment is normally distributed with…

A: X be time taken by brake discs to overheat on construction equipment. and X has normally…

Q: The number of chocolate chips in an​ 18-ounce bag of chocolate chip cookies is normally distributed…

A: Let the random variable Y represent the number of chocolate chips in a randomly selected bag.The…

Q: A large machine produces an average of 1.3 defects per box of floor tile. What is the probability…

A: Probability of defects is the statistical chance that a product or process will not meet performance…

Q: In a factory, there were 12 accidents involving machinery in the last six months.  (d) Calculate…

A: Given, In a factory, there were 12 accidents in the last 6 months => 12/6 = 2 accidents per month…

Q: If you roll 1 six sided die, what is the probability that you roll an odd number? (Express your…

A: Probability is defined as the extent to which an event is likely to occur. The probability of an…

Q: A six-sided die is rolled 5 times, what is the probability of rolling 4 less than 3

A:

Q: Calculate the probability that the wire selected to be used in the project is not made from copper.…

A: The data is given by   10 12 14 Total Copper 0.12 0.09 0.11 0.32 Iron 0.05 0.15 0.10 0.30…

Q: A six-sided die is rolled 5 times. What is the probability that 6 dots will appear 4 times?

A: The sample space to roll six-sided die are S = { 1, 2, 3, 4, 5, 6 }. P(6) = 1/6 = p, n = 5 These are…

Q: The average number of people waiting in the line at a bank muscat ATM is one person every 30…

A: Given that there is 1 person on an average every 30 minutes. So there will be 2 persons on an…

Q: A fair die is thrown 25 times. What is the probability of getting at least 8 “fives?”

A:

Q: The probability that an electronic circuit board contains dirty particles is 0.01. Considering that…

A:

Q: A fair die is rolled 6 times. What is the probability it comes up 4 at least once?

A: Given  n = 6  Die is fair

Q: The mean number of car sold by Beachcomber LTD per day is 3.What is the probability that in any…

A: Here Given  Avg number of cars sold =3 Here we can Use poission distribution

Q: If (the average number of mice / dunums) in a corn field consisting of 50 dunums is 10, Calculate…

A:

Q: The average number of trailer that passed by the south road properties is 60. What is the…

A: The average number of trailer that passed by the south road properties is 60.

Q: When rolling a die 142 times, what is the probability of rolling a 6 greater than 20 times?

A: np = 142/6 = 23.67 >10  n(1-p)  118.33 >10 ============ Normal approximation to binomial dist…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.