SHOW ALL WORK. EITHER WORKED BY HAND OR EXCEL FILE. The life expectancy in the United States is 75 with a standard deviation of 7 years. A random sample of individuals is selected. a. What is the probability that the sample mean will be larger than 77 years? b. What is the probability that the sample mean will be less than 72,7

Q: Question A4 Let the curve C: f (x) = x³ + 6x² – 15x + 8. Find the value(s) of m for which the line y…

A: Given problem:- Let the curve C: f(x)=x3 +6x2 -15x+8. Find the value(s) of m for which the line y =…

Q: 2.5h 5

A:

Q: 21. Find each of the shaded areas under the standard normal curve. а. 1.25

A:

Q: Question 3 Find the domain of the folowing function 4xy fix.y)= O (kyly*x?} O {kylly2x) O (kylly>x)

A:

Q: An open box of maximum volume is made from a square piece of material 24 centimeters on a side by…

A: The volume of a cuboid=length×width×height

Q: Question 10, Bus Econ 1... Sc Suppose that the fixed cost for a product is $420 and the break-even…

A:

Q: 11 cm 6 cm [2]

A:

Q: Consider the following game in the build up to an election. The incumbent right-wing politician must…

A: Given the value of winning the election is 10, while the loser will get a value of 0. We should find…

Q: 1 -de 17 Vīo O vỹ O o o O

A:

Q: RY 2.15 BMI (Example 5) The histograms show the Body Mass Index for 90 females and 89 males…

A:

Q: Assume that 15%. of people are left- nanded. If 6 people are selected at random. a. Find the…

A: The percentage of left-handed people is p=0.15=15%The number of people selected is n=6To find:a) the…

Q: Cor Salon provides haircut and facial cleansing, 40% of customers are older men and 007% of…

A: Given information: P(older men)=40%=0.40 P(younger men)=60%=0.60 P(facial cleansing| older…

Q: 5. For a standard normal distribution, what is the probability that z is less than 1.25? A) 0.8944…

A: (5)  Let Z be the random variable from standard normal distribution with mean = 0 and standard…

Q: B. 5. AC = 10

A:

Q: 51. 2 In 2 -

A: From the data:

Q: please help with 4.4.1 "d"

A: 4.4.1 d   Let us define the random variable Y as the of number of RCH tumour incidents follows…

Q: is to be chosen at random to recommend a new company president. What is the probability 7. A board…

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: 15 V =-

A: To find  I = ∫0915xdx

Q: 9. The mean cost customers pay for gasoline in a gas station is SAR 75. The distrıbu cost of…

A: Formula : Z =(X - μ)/σ

Q: (b) Determine the values of a and b that make f(x) continuous for all real x. x² – 4 x- 2 f(x) =…

A:

Q: 15. A football team scores on average 2.25 goals per game, what is the probability that the team…

A: Let us denote X be the football team scores per game follows Poisson distribution with average of…

Q: (ii) Hence, evaluate 37x² – 17x + 38 J, (x + 6)(x – 1)²"

A:

Q: 3. 8 ft 12 ft 39 ft

A: 2. For the given cuboid l=10 in, b=14 in, h=4.5 in Volume will be, V=l×b×h   =10×14×4.5   =630 in3

Q: Part 3 out of 3 с. 98 or 2.

A: The prime factorization of 98 is 2×7×7

Q: For the following function, a) give the coordinates of any critical points and classify each point…

A:

Q: 27.9 divided by 0.4

A:

Q: Find the first four nonzero terms in a power series expansion about xo for a general solution to the…

A:

Q: 16. Consider a situation in which a used-car lot contains five Ford cars, four Nissan cars, and…

A: We have given that  Ford cars = 5 Nissan cars = 4 BMW cars = 3 Total number of cars = 12