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3 years ago

Given that z is a standard normal random variable, find z for each situation (to 2 decimals).

Mathematics

1 answer:

JulsSmile [24]3 years ago

6 0

Answer:

a. 1.94

b. 1.94

c. 1.05

d. 1.15

e. 0.44

f. 0.44

Step-by-step explanation:

z-table is used to calculate the values

a. The area to the left of z is .9738

z= 1.94

b. The area between 0 and z is .4738 ( is positive)

z= 1.94

c. The area to the left of z is .8531

z=1.05

d. The area to the right of z is .1251

z=1.15

e. The area to the left of z is .6700

z=0.44

f. The area to the right of z is .3300

z=0.44

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allochka39001 [22]

Answer:

Part A:

c = 1.15p

c(2) = $2.30

Part B:

c = 0.90p

Part B:

Step-by-step explanation:

Linear Models

Candy's Sweets Company charges $1.15 per pound to ship candy. This represents a proportional relationship between the pounds of candy and the cost.

Part A: If each pound costs $1.15, then p pounds cost $1.15p. Then the equation of the cost c is:

c = 1.15p

The cost of shipping p=2 pounds of candy is:

c = 1.15*2 = 2.30

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The new equation to determine the total cost for p pounds of candy is:

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3 years ago

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Liula [17]

Answer:

Step-by-step explanation:

if you do the math you end up with 49 which is a perfect square of 7

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3 years ago

Please help, I'm not sure if I'm right.

Luden [163]

To prove the QRST is a parallelogram.

Step 1: Given $\angle T \cong \angle R$ and $\overline{Q R} \| \overline{T S}$

Step 2: $\angle R Q S \text { and } \angle T S Q$ are alternate interior angles.

Definition of alternate interior angles

Step 3: Alternate interior angle theorem:

If two parallel lines cut by a transversal then the alternate interior angles are congruence.

QR and TS are parallel lines cut by QS.

Therefore, $\angle R Q S \cong \angle T S Q$

Step 4: Reflexive property of congruence:

Any geometric figure is congruence to itself.

Therefore, $\overline{Q S} \cong \overline{Q S}$

Step 5: By the above steps

$\angle T \cong \angle R$ (Angle), $\angle R Q S \cong \angle T S Q$ (Angle) and $\overline{Q S} \cong \overline{Q S}$ (Side)

Hence $\triangle Q T S \cong \triangle S R Q$ (by ASA congruence theorem)

Step 6: Corresponding parts of congruence triangles are congruent.

$\Rightarrow \ \overline{Q R} \cong \overline{T S}$

Step 7: Property of parallelogram:

If one pair of opposite sides are both parallel and congruent, then the quadrilateral is a parallelogram.

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3 years ago

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Andreas93 [3]

Answer:

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Step-by-step explanation:

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