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Delayed checkpoint: check retention: original cases with explanations after your first response.
Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.
After a gap, compare a spinner probability, a constrained triangle and a mean after appending an observation. Explain why each chosen relationship holds under all the stated conditions.
A spinner has three equally likely outcomes labeled 0, 1 and 2. Two independent spins are added. Quantity A: Probability the sum is even Quantity B: 1/2 Compare the quantities using only the stated information.
A right triangle has positive integer leg lengths and hypotenuse 5. Quantity A: Its area Quantity B: 7 Compare the quantities using only the stated information.
A list consists of exactly three real observations with sum zero. A fourth observation equal to zero is appended. Quantity A: New arithmetic mean Quantity B: Original arithmetic mean Compare the quantities using only the stated information.
Use this foundations retention sample to choose the next worked lesson; repeated exposure is review and does not predict an official score.