The percent distribution of a person's accumulating specific amounts of credit card charges over a 12-month period is shown in the pie chart. Find each probability.

Credit Card Charges

Under$10034%

$100-$49919%

$500-$99913%

$1000-$199914%

$2000-$29997%

$3000-$49998%

$5000-$99994%

$10,000ormore1%

a. What is the probability that a person's total charges are $3000

or more?

nothing

(Type an integer or a decimal.)

b. What is the probability that a person's total charges are less than $1000

?

nothing

(Type an integer or a decimal.)

c. What is the probability that a person's total charges are $500 to $2999

?

nothing

(Type an integer or a decimal.)

question 2

The access code for a car's security system consists of sixdigits. The first digit cannot be 9 and the last digit must be even

How many different codes are available?

The number of different codes available is nothing

(Type a whole number.)

QUESTION 3

Identify the two events described in the study and determine if the results indicate that the events are independent or dependent. Explain your reasoning.

A study found that there is no relationship between being around cell phones

and developing cancer

.

Identify the two events. Choose the correct answer below.

A.Developing cancer and not developing cancer

B.Being around cell phonesand developing cancer

.

C.Being around people with cancer and exposure to cell phones

.

D.Being around cell phones and not being around cell phones

Are the events independent or dependent?

A.Independent. Developing cancer is related to being around cell phones

.

B.Dependent. The type of cancer developed is caused by one's exposure to cell phones

.

C. Dependent. Being around cell phones does cause cancer

.

D. Independent. Being around cell phones does not cause cancer

QUESTION 4

The table below shows the results of a survey in which 141

men and 146

women workers ages 25 to 64 were asked if they have at least one month's income set aside for emergencies. Complete parts (a) through (d).

Men

Women

Total

Less than one month's income

65

84

149

One month's income or more

76

62

138

Total

141

146

287

(a) Find the probability that a randomly selected worker has one month's income or more set aside for emergencies.

The probability is nothing

.

(Round to the nearest thousandth as needed.)

(b) Given that a randomly selected worker is a male, find the probability that the worker has less than one month's income.

The probability is nothing

.

(Round to the nearest thousandth as needed.)

(c) Given that a randomly selected worker has one month's income or more, find the probability that the worker is a female.

The probability is nothing

.

(Round to the nearest thousandth as needed.)

(d) Are the events "having less than one month's income saved" and "being male" independent or dependent?

Dependent

Independent

QUESTION 5

A standard deck of cards contains 52 cards. One card is selected from the deck.

(a)

Compute the probability of randomly selecting a

spade

or club

.

(b)

Compute the probability of randomly selecting a

spade

or club

or heart

.

(c)

Compute the probability of randomly selecting a

six

or diamond

.

a. P(spade

or club

)equalsnothing

(Round to three decimal places as needed.)

b. P(spade

or club

or heart

)equalsnothing

(Round to three decimal places as needed.)

c. P(six

or diamond

)equalsnothing

(Round to three decimal places as needed.)