A scientist plans to find out the percent of teenagers who like science. She interviews 500 teenagers leaving a science museum a
nd finds that 450 of them like science. The scientist concludes that 90 percent of teenagers like science. Why is the scientist's conclusion most likely unreliable? adults were not interviewed the investigation was time consuming the source of information was biased very few teenagers were interviewed
Sadly she has not concluded much. She needs a more diverse & larger population of teenagers to come to a less biased conclusion. results will be skewed.
The source of information was biased. It was like walking along a river bank in the country and asking everybody you meet whether they like fishing. Or asking 500 people sitting in the bleachers whether they like baseball. I'm sure the scientist would have gotten different data if she interviewed 500 teenagers at neighborhood basketball courts, or 500 teenagers at a rock concert.
Explanation: The color of a star is linked to its surface temperature. The hotter the star, the shorter the wavelength of light it will emit. The hottest ones are blue or blue-white, which are shorter wavelengths of light. Cooler ones are red or red-brown, which are longer wavelengths.
