The following table provides a probability distribution for the random variable y. a. Compute E(y) (to 1 decimal). b. Compute Var(y) and a (to 2 decimals). Var(y) y 2 4 7 9 f(y) 0.20 0.20 0.30 0.30

Q: 621 80

A: The normal curve is the continuous  bell shaped curve which is perfectly symmetric about is mean.…

Q: Selve du 4824 8.

A: Given heat equation, ∂u∂t=4∂2u ∂x2u(0,t)=0u(8,t)=0u(x,0)=4x-12x2=f(x,y)  Here length l=8 and c2=4

Q: 55 110

A: Given that: 5=55110

Q: Jim receives an annual salary of $40000 based on 35hours per work week. what is the gross earning is…

A:

Q: ANB=Ø

A: The events A, B are disjoint. So A∩B=∅ If two events are disjoint, then the probability of them both…

Q: 13.1 feet - 5.207 feet

A: Given,          13.1 feet - 5.207 feet

Q: 367 58

A: Given: ×3675821286

Q: 2309 4

A: It is just a division of numbers.

Q: 0.3(7 + 2x) + 1.3x = 3.5

A:

Q: Express 225:80

A:

Q: 4 35 28

A: Given data: The given triangle is shown below.

Q: Write the answer to each number sentence on the line. Plan to spend no more than 6 minutes total on…

A: Multiplication

Q: 23 equals 14 divided by h

A: Cross-product method: This method is used to compare two fractions. Multiplying the numerator of…

Q: 4. X = 100

A:

Q: Express 5.55 x 102 as an ordinary number.

A: We need to express given number in ordinary number.

Q: 1 34 268 ".95 A=

A: We find the determinant of given matrix A by determinant expansion.

Q: 51. 2 In 2 -

A: From the data:

Q: 21.6. S dz 3.

A:

Q: 7. 185 X 24

A: Solution To find the multiplication we use the following rule .

Q: 36 85

A: Given, A right triangle with one leg 36  and hypotenuse is 85  We have to find the length of other…

Q: 2549

A:

Q: 214 8.

A:

Q: tani o

A: Trigonometry

Q: Find the length of H H. 33° 17° 35-

A: The given problem is solved below in detail.

Q: t=69.47-70 28.26 v57

A: t= 69.47-7028.2657   First solving the numerator part = 69.47-70 = - 0.53 Denominator part =…

Q: x* In xdr

A: We are asked to evaluate to integral.

Q: How many feet are in 4 miles

A:

Q: 00 e 2.

A:

Q: 240 a 250

A: To find the value of a from the given figure.

Q: What is the approximate value of tan бл 5

A: let  A=tan(6π5)we know tan(π+x)=tanx

Q: (101.3 + 9.81 · 1.03 · h) = 6 · 101.3

A: Solution

Q: National Co. used 30 hours to produce the first batch of units.  The second batch took an additional…

A:

Q: 60 30 6./3

A:

Q: t. 6 G

A: In triangle ABC The length of side AC=6 units. m∠B=60∘

Q: 8 E С 105⁰ 64° 4 В

A: Let's find angle.

Q: 58.4 miles=? Kilometers

A: There are 1.60934 kilometers in 1 mile.

Q: 306.9 ÷ 6.4

A: Given; 306.9 ÷ 6.4

Q: 35. 75

A:

Q: 98+3=

A: Given query is to perform the division.

Q: 28=4+m m=

A: 28=4+m  Subtracting 4 from both sides, 28-4=4+m-4  24=m  Hence m=24.