Which of the following statements about probability models is TRUE? Only one model can be used for a given probability calculation.
Systematic lists are effective models when probability calculations inside the system grid include a single AND statement.
Area models are most effective for complex probability calculations with multiple AND statements.
Tree diagrams are most effective for complex probability calculations with multiple AND statements.

Tree diagrams are most effective for complex probability calculations with multiple AND statements

Step-by-step explanation:

The given statements truths are;

A probability calculation can be calculated by using more than one model, which are dependent on the given parameters which can be either a graphical model such as a tree diagram, or an analytical model such as the systematic list model

A systematic list model is one that lists the possible outcomes of simple events

Area models are used for the representation of simple probabilities

Tree diagram models are helpful in graphically displaying complex probabilities, to aid visualization of the solution.

chase is right because he already been to the swings and he know how far it will be to get there

step-by-step explanation:

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

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