27. Alarm Clock - Redundancy: You have two alarm clocks. The first one is successful 95% of the time and the second one is successful 60% of the time (it turns out your second one was actually less reliable than the first). (a) Suppose you only remember to set the good alarm clock. What is the probability that it will succeed on the morning of an important exam? (b) Suppose you' aset both alarm clocks. What is the probability that at least one of them is successful on the morning of an important exam? (e) This practice of using a second device is called redundancy. Was there a significant increase in the probability of getting to the exam obtained using the second alarm clock?

Q: Find mZCEB. B 45 109 M2CEB =

A: Circle  To find m∠CEB

Q: Let the random variables x and y have joint pdf as follow 0<x<1,0 <y<1 f(x,y) = (11x² + 4y²), Find…

A: The covariance of two random variables X and Y is given by: Cov(X,Y)=E(XY)-E(X)E(Y) To find the…

Q: $6. 26 21 25

A: Solution of the problem as follows

Q: च ( eXprs the unswer inter wisofUN, furf

A:

Q: is 28 years. H vhole number.

A:

Q: Simplify. Зи- 5и

A: We know simplification of the expression, ax-bx= (a-b)x

Q: find population sd   42,48,49,52,56,58,59,65

A:

Q: hello, thankyou for answering could you answer tha encircled number please?

A: Solution

Q: 39 %3D II

A: We know that  i4 =1 and i2 =-1 So that  (i4)9 = 19 i.e. i36 = 1 So that  i39 = i36 . i2 . i =…

Q: ト=| Conv or div?

A:

Q: 6.1 please

A: a) Conditions: The conditions for the two proportion test for sample sizes n1 and n2 with sample…

Q: arg er side is doubled.the new hyp

A: the largest side of a right angle triangle is hypotenuse.  It is doubled .

Q: snip

A: Given: 1.43=____  823=____ 3-2=____

Q: s): olicities: Behavior at x-axis: (through, bounce, flatten) 2. Divide. 4x-10x+5x-7x+1 -x+2

A:

Q: Evaluate V16. O 16 02 O 1.41 O2.6

A:

Q: Find X * 7 59.02 32.58 31.44 O 57.32 13 xº

A: We want to find value of x

Q: Pl3ase and thank you

A: The given boundary curves are:y=cosx and y=0 (the x-axis) It is required to find the volume of the…

Q: What two regression inferences did we discuss in this section? What assumptions are required for…

A:

Q: 11 y 27 어

A: We have to find value of y of  11/y = 9/27  Then ,

Q: Need help with number 4 letter B

A:

Q: Answer unclear

A:

Q: I indy ralue

A: using two formula ln(y²) =2lny (x-y)²=x²-2xy+y²

Q: V-30 V10

A:

Q: (2²/1) tan 2 jestades CEL

A:

Q: 5.2 please

A: Given information 95% confidence interval = (128 minutes, 147 minutes)

Q: Demin Rang

A: The given function is  f(x) = 11-2x+1